diff --git a/backend/prisma/migrations/20260628130000_add_cases_permissions/migration.sql b/backend/prisma/migrations/20260628130000_add_cases_permissions/migration.sql
new file mode 100644
index 0000000..e44243d
--- /dev/null
+++ b/backend/prisma/migrations/20260628130000_add_cases_permissions/migration.sql
@@ -0,0 +1,15 @@
+-- Add Cases tab permissions for lab organizations
+
+INSERT INTO "features" ("id", "name", "description", "organizationTypeId")
+VALUES (gen_random_uuid(), 'Cases', 'Lab cases inbox', NULL)
+ON CONFLICT ("name") DO NOTHING;
+
+INSERT INTO "permissions" ("id", "name", "description", "featureId")
+SELECT gen_random_uuid(), v.name, NULL, f.id
+FROM (VALUES
+  ('TAB_CASES_READ'),
+  ('TAB_CASES_EDIT')
+) AS v(name)
+CROSS JOIN "features" f
+WHERE f.name = 'Cases'
+ON CONFLICT ("name") DO NOTHING;
diff --git a/backend/prisma/seed.ts b/backend/prisma/seed.ts
index 6023967..171ac79 100644
--- a/backend/prisma/seed.ts
+++ b/backend/prisma/seed.ts
@@ -89,6 +89,10 @@ async function main() {
       name: 'Treatment',
       permissions: ['TAB_TREATMENT_READ', 'TAB_TREATMENT_EDIT'],
     },
+    {
+      name: 'Cases',
+      permissions: ['TAB_CASES_READ', 'TAB_CASES_EDIT'],
+    },
     {
       name: 'Billing',
       permissions: ['TAB_BILLING_READ', 'TAB_BILLING_EDIT'],
diff --git a/backend/src/common/guards/clinic-org.guard.ts b/backend/src/common/guards/clinic-org.guard.ts
new file mode 100644
index 0000000..5b16b09
--- /dev/null
+++ b/backend/src/common/guards/clinic-org.guard.ts
@@ -0,0 +1,25 @@
+import {
+  CanActivate,
+  ExecutionContext,
+  Injectable,
+  UnauthorizedException,
+} from '@nestjs/common';
+import { PrismaService } from '../../../prisma/prisma.service';
+import { assertClinicOrganization } from '../../common/organization-type';
+
+@Injectable()
+export class ClinicOrgGuard implements CanActivate {
+  constructor(private readonly prisma: PrismaService) {}
+
+  async canActivate(context: ExecutionContext): Promise<boolean> {
+    const request = context.switchToHttp().getRequest<{ user?: { organizationId?: string } }>();
+    const organizationId = request.user?.organizationId;
+
+    if (!organizationId) {
+      throw new UnauthorizedException('Organization is not selected');
+    }
+
+    await assertClinicOrganization(this.prisma, organizationId);
+    return true;
+  }
+}
diff --git a/backend/src/common/organization-type.ts b/backend/src/common/organization-type.ts
new file mode 100644
index 0000000..d8b59ce
--- /dev/null
+++ b/backend/src/common/organization-type.ts
@@ -0,0 +1,100 @@
+import { ForbiddenException, NotFoundException } from '@nestjs/common';
+import { PrismaService } from '../../prisma/prisma.service';
+import { ALL_TAB_PERMISSIONS, normalizeTabPermissions } from './permissions';
+
+export type OrganizationTypeName = 'CLINIC' | 'LAB';
+
+const CLINIC_ONLY_PERMISSIONS = new Set<string>([
+  'TAB_PATIENTS_READ',
+  'TAB_PATIENTS_EDIT',
+  'TAB_APPOINTMENTS_READ',
+  'TAB_APPOINTMENTS_EDIT',
+  'TAB_TREATMENT_READ',
+  'TAB_TREATMENT_EDIT',
+]);
+
+const LAB_ONLY_PERMISSIONS = new Set<string>(['TAB_CASES_READ', 'TAB_CASES_EDIT']);
+
+const SHARED_PERMISSIONS = ALL_TAB_PERMISSIONS.filter(
+  (p) => !CLINIC_ONLY_PERMISSIONS.has(p) && !LAB_ONLY_PERMISSIONS.has(p),
+);
+
+export const CLINIC_TAB_PERMISSIONS = [
+  ...SHARED_PERMISSIONS,
+  ...CLINIC_ONLY_PERMISSIONS,
+] as const;
+
+export const LAB_TAB_PERMISSIONS = [
+  ...SHARED_PERMISSIONS,
+  ...LAB_ONLY_PERMISSIONS,
+] as const;
+
+const CLINIC_TAB_SET = new Set<string>(CLINIC_TAB_PERMISSIONS);
+const LAB_TAB_SET = new Set<string>(LAB_TAB_PERMISSIONS);
+
+export function permissionsAllowedForOrgType(orgType: OrganizationTypeName): Set<string> {
+  return orgType === 'LAB' ? LAB_TAB_SET : CLINIC_TAB_SET;
+}
+
+export function filterPermissionsForOrgType(
+  names: string[],
+  orgType: OrganizationTypeName,
+): string[] {
+  const allowed = permissionsAllowedForOrgType(orgType);
+  return normalizeTabPermissions(names.filter((n) => allowed.has(n)));
+}
+
+export function ownerPermissionsForOrgType(
+  orgType: OrganizationTypeName,
+  hasActivePlan: boolean,
+): string[] {
+  if (hasActivePlan) {
+    return orgType === 'LAB' ? [...LAB_TAB_PERMISSIONS] : [...CLINIC_TAB_PERMISSIONS];
+  }
+
+  const readOnly = (perms: readonly string[]) =>
+    normalizeTabPermissions(perms.filter((p) => p.endsWith('_READ')));
+
+  return orgType === 'LAB' ? readOnly(LAB_TAB_PERMISSIONS) : readOnly(CLINIC_TAB_PERMISSIONS);
+}
+
+export async function getOrganizationTypeName(
+  prisma: PrismaService,
+  organizationId: string,
+): Promise<OrganizationTypeName> {
+  const org = await prisma.organization.findUnique({
+    where: { id: organizationId },
+    select: { type: { select: { name: true } } },
+  });
+
+  if (!org) {
+    throw new NotFoundException('Organization not found');
+  }
+
+  const name = org.type.name;
+  if (name !== 'CLINIC' && name !== 'LAB') {
+    throw new ForbiddenException('Unknown organization type');
+  }
+
+  return name;
+}
+
+export async function assertClinicOrganization(
+  prisma: PrismaService,
+  organizationId: string,
+): Promise<void> {
+  const type = await getOrganizationTypeName(prisma, organizationId);
+  if (type !== 'CLINIC') {
+    throw new ForbiddenException('This action is only available for clinic organizations');
+  }
+}
+
+export async function assertLabOrganization(
+  prisma: PrismaService,
+  organizationId: string,
+): Promise<void> {
+  const type = await getOrganizationTypeName(prisma, organizationId);
+  if (type !== 'LAB') {
+    throw new ForbiddenException('This action is only available for lab organizations');
+  }
+}
diff --git a/backend/src/common/permissions.ts b/backend/src/common/permissions.ts
index 5d0b172..4a6f6c8 100644
--- a/backend/src/common/permissions.ts
+++ b/backend/src/common/permissions.ts
@@ -12,6 +12,8 @@ export const ALL_TAB_PERMISSIONS = [
   'TAB_APPOINTMENTS_EDIT',
   'TAB_TREATMENT_READ',
   'TAB_TREATMENT_EDIT',
+  'TAB_CASES_READ',
+  'TAB_CASES_EDIT',
   'TAB_BILLING_READ',
   'TAB_BILLING_EDIT',
   'TAB_REPORTS_READ',
@@ -40,6 +42,7 @@ const EDIT_TO_READ: Record<string, string> = {
   TAB_STAFF_EDIT: 'TAB_STAFF_READ',
   TAB_ORGANIZATIONS_EDIT: 'TAB_ORGANIZATIONS_READ',
   TAB_TREATMENT_EDIT: 'TAB_TREATMENT_READ',
+  TAB_CASES_EDIT: 'TAB_CASES_READ',
   TAB_BILLING_EDIT: 'TAB_BILLING_READ',
   TAB_REPORTS_EDIT: 'TAB_REPORTS_READ',
 };
diff --git a/backend/src/modules/appointments/appointments.controller.ts b/backend/src/modules/appointments/appointments.controller.ts
index f6dfa7f..12a50f2 100644
--- a/backend/src/modules/appointments/appointments.controller.ts
+++ b/backend/src/modules/appointments/appointments.controller.ts
@@ -11,6 +11,7 @@ import {
   UseGuards,
 } from '@nestjs/common';
 import { ApiBearerAuth, ApiOperation, ApiTags } from '@nestjs/swagger';
+import { ClinicOrgGuard } from '../../common/guards/clinic-org.guard';
 import { JwtAuthGuard } from '../auth/guards/jwt-auth.guard';
 import { AppointmentsService } from './appointments.service';
 import { ColumnProvidersQueryDto } from './dto/column-providers-query.dto';
@@ -20,7 +21,7 @@ import { UpdateAppointmentDto } from './dto/update-appointment.dto';
 
 @ApiTags('appointments')
 @ApiBearerAuth('JWT-auth')
-@UseGuards(JwtAuthGuard)
+@UseGuards(JwtAuthGuard, ClinicOrgGuard)
 @Controller('appointments')
 export class AppointmentsController {
   constructor(private readonly appointmentsService: AppointmentsService) {}
diff --git a/backend/src/modules/appointments/appointments.module.ts b/backend/src/modules/appointments/appointments.module.ts
index e6f0b5f..e51d71f 100644
--- a/backend/src/modules/appointments/appointments.module.ts
+++ b/backend/src/modules/appointments/appointments.module.ts
@@ -1,5 +1,6 @@
 import { Module } from '@nestjs/common';
 import { PrismaService } from '../../../prisma/prisma.service';
+import { ClinicOrgGuard } from '../../common/guards/clinic-org.guard';
 import { StaffModule } from '../staff/staff.module';
 import { AppointmentsController } from './appointments.controller';
 import { AppointmentsService } from './appointments.service';
@@ -7,6 +8,6 @@ import { AppointmentsService } from './appointments.service';
 @Module({
   imports: [StaffModule],
   controllers: [AppointmentsController],
-  providers: [AppointmentsService, PrismaService],
+  providers: [AppointmentsService, PrismaService, ClinicOrgGuard],
 })
 export class AppointmentsModule {}
diff --git a/backend/src/modules/auth/auth.service.ts b/backend/src/modules/auth/auth.service.ts
index 17fcac4..5e1b861 100644
--- a/backend/src/modules/auth/auth.service.ts
+++ b/backend/src/modules/auth/auth.service.ts
@@ -20,6 +20,7 @@ import {
   UpdateLanguageDto,
 } from './dto/update-language.dto';
 import { JwtPayload } from './interfaces/jwt-payload.interface';
+import { ownerPermissionsForOrgType, type OrganizationTypeName } from '../../common/organization-type';
 
 const ALL_PERMISSIONS = [
   'TAB_TODAY_READ',
@@ -34,6 +35,8 @@ const ALL_PERMISSIONS = [
   'TAB_APPOINTMENTS_EDIT',
   'TAB_TREATMENT_READ',
   'TAB_TREATMENT_EDIT',
+  'TAB_CASES_READ',
+  'TAB_CASES_EDIT',
   'TAB_BILLING_READ',
   'TAB_BILLING_EDIT',
   'TAB_REPORTS_READ',
@@ -806,11 +809,15 @@ export class AuthService {
     isOwner: boolean;
     organization: {
       plan?: { name: string; maxUsers: number; price: number } | null;
+      type?: { name: string };
     };
     permissions?: Array<{ permission: { name: string } }>;
   }): string[] {
     if (membership.isOwner) {
-      return membership.organization.plan ? ALL_PERMISSIONS : READ_ONLY_PERMISSIONS;
+      const orgType = (membership.organization.type?.name === 'LAB'
+        ? 'LAB'
+        : 'CLINIC') as OrganizationTypeName;
+      return ownerPermissionsForOrgType(orgType, Boolean(membership.organization.plan));
     }
     return membership.permissions?.map((p) => p.permission.name) || [];
   }
diff --git a/backend/src/modules/patients/patients.controller.ts b/backend/src/modules/patients/patients.controller.ts
index 46be5c1..cd6fe86 100644
--- a/backend/src/modules/patients/patients.controller.ts
+++ b/backend/src/modules/patients/patients.controller.ts
@@ -10,6 +10,7 @@ import {
   UseGuards,
 } from '@nestjs/common';
 import { ApiBearerAuth, ApiOperation, ApiTags } from '@nestjs/swagger';
+import { ClinicOrgGuard } from '../../common/guards/clinic-org.guard';
 import { JwtAuthGuard } from '../auth/guards/jwt-auth.guard';
 import { CreatePatientDto } from './dto/create-patient.dto';
 import { ListPatientsDto } from './dto/list-patients.dto';
@@ -18,7 +19,7 @@ import { PatientsService } from './patients.service';
 
 @ApiTags('patients')
 @ApiBearerAuth('JWT-auth')
-@UseGuards(JwtAuthGuard)
+@UseGuards(JwtAuthGuard, ClinicOrgGuard)
 @Controller('patients')
 export class PatientsController {
   constructor(private readonly patientsService: PatientsService) {}
diff --git a/backend/src/modules/patients/patients.module.ts b/backend/src/modules/patients/patients.module.ts
index 514afd3..1f1a53d 100644
--- a/backend/src/modules/patients/patients.module.ts
+++ b/backend/src/modules/patients/patients.module.ts
@@ -1,10 +1,11 @@
 import { Module } from '@nestjs/common';
 import { PrismaService } from '../../../prisma/prisma.service';
+import { ClinicOrgGuard } from '../../common/guards/clinic-org.guard';
 import { PatientsController } from './patients.controller';
 import { PatientsService } from './patients.service';
 
 @Module({
   controllers: [PatientsController],
-  providers: [PatientsService, PrismaService],
+  providers: [PatientsService, PrismaService, ClinicOrgGuard],
 })
 export class PatientsModule {}
diff --git a/backend/src/modules/staff/staff.service.ts b/backend/src/modules/staff/staff.service.ts
index 60f4b23..eb476b8 100644
--- a/backend/src/modules/staff/staff.service.ts
+++ b/backend/src/modules/staff/staff.service.ts
@@ -11,6 +11,10 @@ import { Prisma } from '@prisma/client';
 import { PrismaService } from '../../../prisma/prisma.service';
 import { AcceptStaffInviteDto } from './dto/accept-staff-invite.dto';
 import { isUnlimitedSeats, normalizeTabPermissions } from '../../common/permissions';
+import {
+  filterPermissionsForOrgType,
+  getOrganizationTypeName,
+} from '../../common/organization-type';
 import { InviteStaffDto } from './dto/invite-staff.dto';
 import { UpdateStaffMemberDto } from './dto/update-staff-member.dto';
 
@@ -96,7 +100,8 @@ export class StaffService {
     }
 
     const email = dto.email.trim().toLowerCase();
-    const normalizedPerms = normalizeTabPermissions(dto.permissionNames);
+    const orgType = await getOrganizationTypeName(this.prisma, organizationId);
+    const normalizedPerms = filterPermissionsForOrgType(dto.permissionNames, orgType);
 
     const permissionRows = await this.prisma.permission.findMany({
       where: { name: { in: normalizedPerms } },
@@ -371,7 +376,8 @@ export class StaffService {
     }
 
     if (dto.permissionNames !== undefined) {
-      const normalizedPerms = normalizeTabPermissions(dto.permissionNames);
+      const orgType = await getOrganizationTypeName(this.prisma, organizationId);
+      const normalizedPerms = filterPermissionsForOrgType(dto.permissionNames, orgType);
       const permissionRows = await this.prisma.permission.findMany({
         where: { name: { in: normalizedPerms } },
         select: { id: true, name: true },
diff --git a/backend/src/modules/treatments/treatments.controller.ts b/backend/src/modules/treatments/treatments.controller.ts
index 6f9bdac..7293618 100644
--- a/backend/src/modules/treatments/treatments.controller.ts
+++ b/backend/src/modules/treatments/treatments.controller.ts
@@ -17,13 +17,14 @@ import { FilesInterceptor } from '@nestjs/platform-express';
 import { ApiBearerAuth, ApiBody, ApiConsumes, ApiOperation, ApiTags } from '@nestjs/swagger';
 import { memoryStorage } from 'multer';
 import type { Response } from 'express';
+import { ClinicOrgGuard } from '../../common/guards/clinic-org.guard';
 import { JwtAuthGuard } from '../auth/guards/jwt-auth.guard';
 import { SaveTreatmentDraftDto, SendTreatmentCaseDto } from './dto/treatment.dto';
 import { TreatmentsService } from './treatments.service';
 
 @ApiTags('treatments')
 @ApiBearerAuth('JWT-auth')
-@UseGuards(JwtAuthGuard)
+@UseGuards(JwtAuthGuard, ClinicOrgGuard)
 @Controller('treatments')
 export class TreatmentsController {
   constructor(private readonly treatmentsService: TreatmentsService) {}
diff --git a/backend/src/modules/treatments/treatments.module.ts b/backend/src/modules/treatments/treatments.module.ts
index 52fb3b6..47646b1 100644
--- a/backend/src/modules/treatments/treatments.module.ts
+++ b/backend/src/modules/treatments/treatments.module.ts
@@ -1,10 +1,11 @@
 import { Module } from '@nestjs/common';
 import { PrismaService } from '../../../prisma/prisma.service';
+import { ClinicOrgGuard } from '../../common/guards/clinic-org.guard';
 import { TreatmentsController } from './treatments.controller';
 import { TreatmentsService } from './treatments.service';
 
 @Module({
   controllers: [TreatmentsController],
-  providers: [TreatmentsService, PrismaService],
+  providers: [TreatmentsService, PrismaService, ClinicOrgGuard],
 })
 export class TreatmentsModule {}
diff --git a/frontend/messages/en.json b/frontend/messages/en.json
index 3ed3e7c..4cb3bf1 100644
--- a/frontend/messages/en.json
+++ b/frontend/messages/en.json
@@ -51,6 +51,7 @@
     "patients": "Patients",
     "appointment": "Appointment",
     "treatment": "Treatment",
+    "cases": "Cases",
     "billing": "Billing",
     "reports": "Reports",
     "clinics": "Clinics",
@@ -261,6 +262,7 @@
       "featurePatients": "Patients",
       "featureAppointment": "Appointment",
       "featureTreatment": "Treatment",
+      "featureCases": "Cases",
       "featureBilling": "Billing",
       "featureReports": "Reports",
       "noTabAccess": "No tab access",
@@ -313,6 +315,10 @@
     "statusInactive": "Inactive",
     "emptyValue": "-"
   },
+  "cases": {
+    "title": "Cases",
+    "stubDescription": "Received lab cases from linked clinics will appear here. Full inbox and task workflow coming in a later phase."
+  },
   "appointments": {
     "title": "Appointments",
     "subtitle": "Search a patient, pick a date, then click a time slot under a provider to book.",
diff --git a/frontend/messages/fa.json b/frontend/messages/fa.json
index 3de25cc..31f11d1 100644
--- a/frontend/messages/fa.json
+++ b/frontend/messages/fa.json
@@ -51,6 +51,7 @@
     "patients": "بیماران",
     "appointment": "نوبت‌ها",
     "treatment": "درمان",
+    "cases": "پرونده‌ها",
     "billing": "صورتحساب",
     "reports": "گزارش‌ها",
     "clinics": "کلینیک‌ها",
@@ -261,6 +262,7 @@
       "featurePatients": "بیماران",
       "featureAppointment": "نوبت‌ها",
       "featureTreatment": "درمان",
+      "featureCases": "پرونده‌ها",
       "featureBilling": "صورتحساب",
       "featureReports": "گزارش‌ها",
       "noTabAccess": "دسترسی به برگه‌ها وجود ندارد",
@@ -313,6 +315,10 @@
     "statusInactive": "غیرفعال",
     "emptyValue": "-"
   },
+  "cases": {
+    "title": "پرونده‌ها",
+    "stubDescription": "پرونده‌های دریافتی از کلینیک‌های متصل به زودی اینجا نمایش داده می‌شوند. صندوق ورودی کامل و گردش کار وظایف در فاز بعدی اضافه می‌شود."
+  },
   "appointments": {
     "title": "نوبت‌ها",
     "subtitle": "یک بیمار را جستجو کنید، تاریخ را انتخاب کنید، سپس روی یک زمان در زیر ارائه‌دهنده کلیک کنید تا رزرو کنید.",
diff --git a/frontend/messages/nl.json b/frontend/messages/nl.json
index 789e111..20ef812 100644
--- a/frontend/messages/nl.json
+++ b/frontend/messages/nl.json
@@ -51,6 +51,7 @@
     "patients": "Patiënten",
     "appointment": "Afspraak",
     "treatment": "Behandeling",
+    "cases": "Dossiers",
     "billing": "Facturatie",
     "reports": "Rapporten",
     "clinics": "Klinieken",
@@ -261,6 +262,7 @@
       "featurePatients": "Patiënten",
       "featureAppointment": "Afspraak",
       "featureTreatment": "Behandeling",
+      "featureCases": "Dossiers",
       "featureBilling": "Facturatie",
       "featureReports": "Rapporten",
       "noTabAccess": "Geen tabbladtoegang",
@@ -313,6 +315,10 @@
     "statusInactive": "Inactief",
     "emptyValue": "-"
   },
+  "cases": {
+    "title": "Dossiers",
+    "stubDescription": "Ontvangen labdossiers van gekoppelde klinieken verschijnen hier. Volledige inbox en takenworkflow volgen in een latere fase."
+  },
   "appointments": {
     "title": "Afspraken",
     "subtitle": "Zoek een patiënt, kies een datum en klik vervolgens op een tijdslot onder een aanbieder om te boeken.",
diff --git a/frontend/src/app/[locale]/(dashboard)/cases/page.tsx b/frontend/src/app/[locale]/(dashboard)/cases/page.tsx
new file mode 100644
index 0000000..1495096
--- /dev/null
+++ b/frontend/src/app/[locale]/(dashboard)/cases/page.tsx
@@ -0,0 +1,14 @@
+'use client';
+
+import { useTranslations } from 'next-intl';
+
+export default function CasesPage() {
+  const t = useTranslations('cases');
+
+  return (
+    <div className="space-y-4">
+      <h1 className="text-2xl font-semibold text-text-primary">{t('title')}</h1>
+      <p className="text-sm text-text-muted max-w-xl">{t('stubDescription')}</p>
+    </div>
+  );
+}
diff --git a/frontend/src/app/[locale]/(dashboard)/layout.tsx b/frontend/src/app/[locale]/(dashboard)/layout.tsx
index d3b4c39..246abcd 100644
--- a/frontend/src/app/[locale]/(dashboard)/layout.tsx
+++ b/frontend/src/app/[locale]/(dashboard)/layout.tsx
@@ -8,10 +8,8 @@ import Sidebar from '@/components/ui/shared/Sidebar';
 import { TopBarControls } from '@/components/ui/shared/TopBarControls';
 import { DashboardAccountMenu } from '@/components/ui/dashboard/DashboardAccountMenu';
 import {
-  canAccessAppointmentsSection,
+  canAccessDashboardRoute,
   firstAccessibleDashboardPath,
-  getRequiredReadPermissionForPath,
-  hasPermission,
 } from '@/components/shared/permissions';
 
 export default function DashboardLayout({ children }: { children: React.ReactNode }) {
@@ -33,15 +31,8 @@ export default function DashboardLayout({ children }: { children: React.ReactNod
       return;
     }
 
-    const required = getRequiredReadPermissionForPath(pathname);
-    if (required) {
-      const allowed =
-        hasPermission(currentOrganization, required) ||
-        (required === 'TAB_APPOINTMENTS_READ' &&
-          canAccessAppointmentsSection(currentOrganization));
-      if (!allowed) {
-        router.replace(firstAccessibleDashboardPath(currentOrganization));
-      }
+    if (!canAccessDashboardRoute(currentOrganization, pathname)) {
+      router.replace(firstAccessibleDashboardPath(currentOrganization));
     }
   }, [isAuthReady, user, currentOrganization, router, pathname]);
 
diff --git a/frontend/src/app/[locale]/(dashboard)/staff/page.tsx b/frontend/src/app/[locale]/(dashboard)/staff/page.tsx
index 73a0171..e89a731 100644
--- a/frontend/src/app/[locale]/(dashboard)/staff/page.tsx
+++ b/frontend/src/app/[locale]/(dashboard)/staff/page.tsx
@@ -9,13 +9,13 @@ import {
   canViewStaff,
 } from '@/components/shared/permissions';
 import {
-  STAFF_FEATURE_GROUPS,
   permissionNamesFromFeatureState,
   emptyFeaturePermissionState,
   featureStateFromPermissionNames,
   featureStateHasTreatmentEdit,
   resolveStaffFeatureLabel,
   formatAccessSummary,
+  staffFeatureGroupsForOrgType,
   type FeaturePermState,
 } from '@/components/staff/staff-permission-form';
 import {
@@ -112,7 +112,7 @@ function PermissionGrid({
 
   return (
     <div className="grid gap-3 sm:grid-cols-2">
-      {STAFF_FEATURE_GROUPS.map((g) => {
+      {staffFeatureGroupsForOrgType(organizationType).map((g) => {
         const cell = state[g.edit] ?? { read: false, edit: false };
         return (
           <div
@@ -199,10 +199,14 @@ export default function StaffPage() {
 
   const canEdit = useMemo(() => canEditStaff(currentOrganization), [currentOrganization]);
   const inviteHasTreatmentEdit = useMemo(
-    () => featureStateHasTreatmentEdit(invitePerms),
-    [invitePerms],
+    () =>
+      currentOrganization?.type === 'CLINIC' && featureStateHasTreatmentEdit(invitePerms),
+    [currentOrganization?.type, invitePerms],
+  );
+  const editHasTreatmentEdit = useMemo(
+    () => currentOrganization?.type === 'CLINIC' && featureStateHasTreatmentEdit(editPerms),
+    [currentOrganization?.type, editPerms],
   );
-  const editHasTreatmentEdit = useMemo(() => featureStateHasTreatmentEdit(editPerms), [editPerms]);
   const hasActivePlan = Boolean(currentOrganization?.plan);
   const atSeatLimit = useMemo(() => {
     if (!seats || seats.unlimited) return false;
@@ -309,7 +313,7 @@ export default function StaffPage() {
     setInviteStep(1);
     setInviteEmail('');
     setInviteName('');
-    setInvitePerms(emptyFeaturePermissionState());
+    setInvitePerms(emptyFeaturePermissionState(currentOrganization?.type));
     const defaults = createDefaultWorkingHoursState();
     setInviteWorkingHoursDays(defaults.days);
     setInviteAutoRepeatWeekly(defaults.autoRepeatWeekly);
@@ -393,7 +397,7 @@ export default function StaffPage() {
     setEditing(m);
     setEditStep(1);
     setEditName(m.name);
-    setEditPerms(featureStateFromPermissionNames(m.permissions ?? []));
+    setEditPerms(featureStateFromPermissionNames(m.permissions ?? [], currentOrganization?.type));
     setEditHoursValidationError(null);
     const defaults = createDefaultWorkingHoursState();
     setEditWorkingHoursDays(defaults.days);
diff --git a/frontend/src/components/shared/permissions.ts b/frontend/src/components/shared/permissions.ts
index 210bf25..c35867a 100644
--- a/frontend/src/components/shared/permissions.ts
+++ b/frontend/src/components/shared/permissions.ts
@@ -1,16 +1,34 @@
 import type { Organization } from '@/types/organization';
 
-const ROUTE_TAB_READ: { prefix: string; permission: string }[] = [
-  { prefix: '/today', permission: 'TAB_TODAY_READ' },
-  { prefix: '/staff', permission: 'TAB_STAFF_READ' },
-  { prefix: '/organizations', permission: 'TAB_ORGANIZATIONS_READ' },
-  { prefix: '/patients', permission: 'TAB_PATIENTS_READ' },
-  { prefix: '/appointments', permission: 'TAB_APPOINTMENTS_READ' },
-  { prefix: '/treatment', permission: 'TAB_TREATMENT_READ' },
-  { prefix: '/billing', permission: 'TAB_BILLING_READ' },
-  { prefix: '/reports', permission: 'TAB_REPORTS_READ' },
+export type OrgTypeName = 'CLINIC' | 'LAB';
+
+export type DashboardRouteConfig = {
+  prefix: string;
+  permission: string;
+  orgTypes: OrgTypeName[];
+};
+
+export const DASHBOARD_ROUTES: DashboardRouteConfig[] = [
+  { prefix: '/today', permission: 'TAB_TODAY_READ', orgTypes: ['CLINIC', 'LAB'] },
+  { prefix: '/staff', permission: 'TAB_STAFF_READ', orgTypes: ['CLINIC', 'LAB'] },
+  { prefix: '/organizations', permission: 'TAB_ORGANIZATIONS_READ', orgTypes: ['CLINIC', 'LAB'] },
+  { prefix: '/patients', permission: 'TAB_PATIENTS_READ', orgTypes: ['CLINIC'] },
+  { prefix: '/appointments', permission: 'TAB_APPOINTMENTS_READ', orgTypes: ['CLINIC'] },
+  { prefix: '/treatment', permission: 'TAB_TREATMENT_READ', orgTypes: ['CLINIC'] },
+  { prefix: '/cases', permission: 'TAB_CASES_READ', orgTypes: ['LAB'] },
+  { prefix: '/billing', permission: 'TAB_BILLING_READ', orgTypes: ['CLINIC', 'LAB'] },
+  { prefix: '/reports', permission: 'TAB_REPORTS_READ', orgTypes: ['CLINIC', 'LAB'] },
 ];
 
+export function isRouteAllowedForOrgType(pathname: string, orgType: OrgTypeName | undefined): boolean {
+  if (!orgType) return false;
+  const route = DASHBOARD_ROUTES.find(
+    (r) => pathname === r.prefix || pathname.startsWith(`${r.prefix}/`),
+  );
+  if (!route) return true;
+  return route.orgTypes.includes(orgType);
+}
+
 export function hasPermission(org: Organization | null, permission: string): boolean {
   if (!org) return false;
   return Boolean(org.permissions?.includes(permission));
@@ -26,21 +44,49 @@ export function canViewTab(org: Organization | null, readPermission: string): bo
   return hasPermission(org, readPermission);
 }
 
-export function getRequiredReadPermissionForPath(pathname: string): string | null {
-  for (const { prefix, permission } of ROUTE_TAB_READ) {
-    if (pathname === prefix || pathname.startsWith(`${prefix}/`)) {
-      return permission;
+export function getRouteConfigForPath(pathname: string): DashboardRouteConfig | null {
+  for (const route of DASHBOARD_ROUTES) {
+    if (pathname === route.prefix || pathname.startsWith(`${route.prefix}/`)) {
+      return route;
     }
   }
   return null;
 }
 
+export function getRequiredReadPermissionForPath(pathname: string): string | null {
+  return getRouteConfigForPath(pathname)?.permission ?? null;
+}
+
+export function canAccessDashboardRoute(org: Organization | null, pathname: string): boolean {
+  if (!org) return false;
+
+  const route = getRouteConfigForPath(pathname);
+  if (!route) return true;
+
+  if (!isRouteAllowedForOrgType(pathname, org.type)) {
+    return false;
+  }
+
+  if (route.prefix === '/appointments') {
+    return canAccessAppointmentsSection(org);
+  }
+
+  return hasPermission(org, route.permission);
+}
+
 /** First dashboard route the user may open (ordered). Fallback: account settings. */
 export function firstAccessibleDashboardPath(org: Organization | null): string {
   if (!org) return '/today';
-  for (const { prefix, permission } of ROUTE_TAB_READ) {
-    if (hasPermission(org, permission)) return prefix;
+
+  for (const route of DASHBOARD_ROUTES) {
+    if (!route.orgTypes.includes(org.type)) continue;
+    if (route.prefix === '/appointments') {
+      if (canAccessAppointmentsSection(org)) return route.prefix;
+      continue;
+    }
+    if (hasPermission(org, route.permission)) return route.prefix;
   }
+
   return '/settings/account';
 }
 
@@ -62,6 +108,9 @@ export function canEditAppointments(org: Organization | null): boolean {
   if (!org) {
     return false;
   }
+  if (org.type !== 'CLINIC') {
+    return false;
+  }
   if (org.isOwner) {
     return true;
   }
@@ -76,6 +125,9 @@ export function canAccessAppointmentsSection(org: Organization | null): boolean
   if (!org) {
     return false;
   }
+  if (org.type !== 'CLINIC') {
+    return false;
+  }
   if (org.isOwner) {
     return true;
   }
@@ -90,6 +142,7 @@ export function canAccessAppointmentsSection(org: Organization | null): boolean
 /** Treatment composer, scheduling columns, and saving clinical workflows */
 export function canEditTreatment(org: Organization | null): boolean {
   if (!org) return false;
+  if (org.type !== 'CLINIC') return false;
   if (org.isOwner) return true;
   return hasPermission(org, 'TAB_TREATMENT_EDIT');
 }
@@ -97,9 +150,28 @@ export function canEditTreatment(org: Organization | null): boolean {
 /** View treatment workspace (read-only or edit) */
 export function canViewTreatment(org: Organization | null): boolean {
   if (!org) return false;
+  if (org.type !== 'CLINIC') return false;
   if (org.isOwner) return true;
   return (
     hasPermission(org, 'TAB_TREATMENT_READ') ||
     hasPermission(org, 'TAB_TREATMENT_EDIT')
   );
 }
+
+/** Lab cases inbox */
+export function canViewCases(org: Organization | null): boolean {
+  if (!org) return false;
+  if (org.type !== 'LAB') return false;
+  if (org.isOwner) return true;
+  return (
+    hasPermission(org, 'TAB_CASES_READ') ||
+    hasPermission(org, 'TAB_CASES_EDIT')
+  );
+}
+
+export function canEditCases(org: Organization | null): boolean {
+  if (!org) return false;
+  if (org.type !== 'LAB') return false;
+  if (org.isOwner) return true;
+  return hasPermission(org, 'TAB_CASES_EDIT');
+}
diff --git a/frontend/src/components/staff/staff-permission-form.ts b/frontend/src/components/staff/staff-permission-form.ts
index a14ff02..e4312d7 100644
--- a/frontend/src/components/staff/staff-permission-form.ts
+++ b/frontend/src/components/staff/staff-permission-form.ts
@@ -3,22 +3,32 @@
  * Add presentational pieces under ./components/ as the UI grows.
  */
 
+import type { OrgTypeName } from '@/components/shared/permissions';
+
 export const STAFF_FEATURE_GROUPS = [
-  { labelKey: 'featureToday', read: 'TAB_TODAY_READ', edit: 'TAB_TODAY_EDIT' },
-  { labelKey: 'featureStaff', read: 'TAB_STAFF_READ', edit: 'TAB_STAFF_EDIT' },
-  { labelKey: 'featureOrganizations', read: 'TAB_ORGANIZATIONS_READ', edit: 'TAB_ORGANIZATIONS_EDIT' },
-  { labelKey: 'featurePatients', read: 'TAB_PATIENTS_READ', edit: 'TAB_PATIENTS_EDIT' },
-  { labelKey: 'featureAppointment', read: 'TAB_APPOINTMENTS_READ', edit: 'TAB_APPOINTMENTS_EDIT' },
-  { labelKey: 'featureTreatment', read: 'TAB_TREATMENT_READ', edit: 'TAB_TREATMENT_EDIT' },
-  { labelKey: 'featureBilling', read: 'TAB_BILLING_READ', edit: 'TAB_BILLING_EDIT' },
-  { labelKey: 'featureReports', read: 'TAB_REPORTS_READ', edit: 'TAB_REPORTS_EDIT' },
+  { labelKey: 'featureToday', read: 'TAB_TODAY_READ', edit: 'TAB_TODAY_EDIT', orgTypes: ['CLINIC', 'LAB'] as const },
+  { labelKey: 'featureStaff', read: 'TAB_STAFF_READ', edit: 'TAB_STAFF_EDIT', orgTypes: ['CLINIC', 'LAB'] as const },
+  { labelKey: 'featureOrganizations', read: 'TAB_ORGANIZATIONS_READ', edit: 'TAB_ORGANIZATIONS_EDIT', orgTypes: ['CLINIC', 'LAB'] as const },
+  { labelKey: 'featurePatients', read: 'TAB_PATIENTS_READ', edit: 'TAB_PATIENTS_EDIT', orgTypes: ['CLINIC'] as const },
+  { labelKey: 'featureAppointment', read: 'TAB_APPOINTMENTS_READ', edit: 'TAB_APPOINTMENTS_EDIT', orgTypes: ['CLINIC'] as const },
+  { labelKey: 'featureTreatment', read: 'TAB_TREATMENT_READ', edit: 'TAB_TREATMENT_EDIT', orgTypes: ['CLINIC'] as const },
+  { labelKey: 'featureCases', read: 'TAB_CASES_READ', edit: 'TAB_CASES_EDIT', orgTypes: ['LAB'] as const },
+  { labelKey: 'featureBilling', read: 'TAB_BILLING_READ', edit: 'TAB_BILLING_EDIT', orgTypes: ['CLINIC', 'LAB'] as const },
+  { labelKey: 'featureReports', read: 'TAB_REPORTS_READ', edit: 'TAB_REPORTS_EDIT', orgTypes: ['CLINIC', 'LAB'] as const },
 ] as const;
 
 export type FeaturePermState = Record<string, { read: boolean; edit: boolean }>;
-export type OrgType = 'CLINIC' | 'LAB' | null | undefined;
+export type OrgType = OrgTypeName | null | undefined;
 
 type StaffFeaturesTranslate = (key: string) => string;
 
+export function staffFeatureGroupsForOrgType(organizationType: OrgType) {
+  if (!organizationType) return [...STAFF_FEATURE_GROUPS];
+  return STAFF_FEATURE_GROUPS.filter((g) =>
+    (g.orgTypes as readonly OrgTypeName[]).includes(organizationType),
+  );
+}
+
 export function resolveStaffFeatureLabel(
   group: (typeof STAFF_FEATURE_GROUPS)[number],
   organizationType: OrgType,
@@ -30,18 +40,21 @@ export function resolveStaffFeatureLabel(
   return t(group.labelKey);
 }
 
-export function emptyFeaturePermissionState(): FeaturePermState {
+export function emptyFeaturePermissionState(organizationType?: OrgType): FeaturePermState {
   const s: FeaturePermState = {};
-  for (const g of STAFF_FEATURE_GROUPS) {
+  for (const g of staffFeatureGroupsForOrgType(organizationType)) {
     s[g.edit] = { read: false, edit: false };
   }
   return s;
 }
 
-export function featureStateFromPermissionNames(names: string[]): FeaturePermState {
+export function featureStateFromPermissionNames(
+  names: string[],
+  organizationType?: OrgType,
+): FeaturePermState {
   const set = new Set(names);
-  const s = emptyFeaturePermissionState();
-  for (const g of STAFF_FEATURE_GROUPS) {
+  const s = emptyFeaturePermissionState(organizationType);
+  for (const g of staffFeatureGroupsForOrgType(organizationType)) {
     const hasEdit = set.has(g.edit);
     const hasRead = set.has(g.read) || hasEdit;
     s[g.edit] = { read: hasRead, edit: hasEdit };
@@ -73,7 +86,7 @@ export function formatAccessSummary(
   if (!permissionNames?.length) return t('noTabAccess');
   const set = new Set(permissionNames);
   const parts: string[] = [];
-  for (const g of STAFF_FEATURE_GROUPS) {
+  for (const g of staffFeatureGroupsForOrgType(organizationType)) {
     const hasEdit = set.has(g.edit);
     const hasRead = set.has(g.read) || hasEdit;
     if (!hasRead) continue;
diff --git a/frontend/src/components/ui/shared/Sidebar.tsx b/frontend/src/components/ui/shared/Sidebar.tsx
index 9faf4e5..d4e2e68 100644
--- a/frontend/src/components/ui/shared/Sidebar.tsx
+++ b/frontend/src/components/ui/shared/Sidebar.tsx
@@ -11,51 +11,73 @@ import {
   FlaskConical,
   FileText,
   CreditCard,
+  Package,
 } from 'lucide-react';
+import type { OrgTypeName } from '@/components/shared/permissions';
 import { useAuth } from '@/lib/hooks/useAuth';
 import { usePendingConnectionsCount } from '@/lib/hooks/usePendingConnectionsCount';
-import { canAccessAppointmentsSection, canViewTab } from '@/components/shared/permissions';
+import {
+  canAccessAppointmentsSection,
+  canViewCases,
+  canViewTab,
+} from '@/components/shared/permissions';
 import {
   counterpartOrganizationType,
   organizationTypeIcon,
 } from '@/components/shared/organizationTypeIcon';
 
+type MenuItem = {
+  name: string;
+  path: string;
+  icon: typeof LayoutDashboard;
+  read: string;
+  orgTypes: OrgTypeName[];
+};
+
 function Sidebar() {
   const t = useTranslations('nav');
   const tCommon = useTranslations('common');
   const pathname = usePathname();
   const { currentOrganization } = useAuth();
   const pendingConnectionsCount = usePendingConnectionsCount();
+  const orgType = currentOrganization?.type;
 
-
-  const menu = useMemo(
-    () => [
-      { name: t('dashboard'), path: '/today', icon: LayoutDashboard, read: 'TAB_TODAY_READ' as const },
-      { name: t('staff'), path: '/staff', icon: UserCog, read: 'TAB_STAFF_READ' as const },
+  const menu = useMemo((): MenuItem[] => {
+    const items: MenuItem[] = [
+      { name: t('dashboard'), path: '/today', icon: LayoutDashboard, read: 'TAB_TODAY_READ', orgTypes: ['CLINIC', 'LAB'] },
+      { name: t('staff'), path: '/staff', icon: UserCog, read: 'TAB_STAFF_READ', orgTypes: ['CLINIC', 'LAB'] },
       {
-        name: currentOrganization?.type === 'LAB' ? t('clinics') : t('labs'),
+        name: orgType === 'LAB' ? t('clinics') : t('labs'),
         path: '/organizations',
-        icon: organizationTypeIcon(counterpartOrganizationType(currentOrganization?.type)),
-        read: 'TAB_ORGANIZATIONS_READ' as const,
+        icon: organizationTypeIcon(counterpartOrganizationType(orgType)),
+        read: 'TAB_ORGANIZATIONS_READ',
+        orgTypes: ['CLINIC', 'LAB'],
       },
-      { name: t('patients'), path: '/patients', icon: Users, read: 'TAB_PATIENTS_READ' as const },
-      { name: t('appointment'), path: '/appointments', icon: Calendar, read: 'TAB_APPOINTMENTS_READ' as const },
-      { name: t('treatment'), path: '/treatment', icon: FlaskConical, read: 'TAB_TREATMENT_READ' as const },
-      { name: t('billing'), path: '/billing', icon: CreditCard, read: 'TAB_BILLING_READ' as const },
-      { name: t('reports'), path: '/reports', icon: FileText, read: 'TAB_REPORTS_READ' as const },
-    ],
-    [currentOrganization?.type, t],
-  );
+      { name: t('patients'), path: '/patients', icon: Users, read: 'TAB_PATIENTS_READ', orgTypes: ['CLINIC'] },
+      { name: t('cases'), path: '/cases', icon: Package, read: 'TAB_CASES_READ', orgTypes: ['LAB'] },
+      { name: t('appointment'), path: '/appointments', icon: Calendar, read: 'TAB_APPOINTMENTS_READ', orgTypes: ['CLINIC'] },
+      { name: t('treatment'), path: '/treatment', icon: FlaskConical, read: 'TAB_TREATMENT_READ', orgTypes: ['CLINIC'] },
+      { name: t('billing'), path: '/billing', icon: CreditCard, read: 'TAB_BILLING_READ', orgTypes: ['CLINIC', 'LAB'] },
+      { name: t('reports'), path: '/reports', icon: FileText, read: 'TAB_REPORTS_READ', orgTypes: ['CLINIC', 'LAB'] },
+    ];
+    return items;
+  }, [orgType, t]);
 
   const visibleMenu = useMemo(
     () =>
       menu.filter((item) => {
+        if (!orgType || !item.orgTypes.includes(orgType)) {
+          return false;
+        }
         if (item.path === '/appointments') {
           return canAccessAppointmentsSection(currentOrganization);
         }
+        if (item.path === '/cases') {
+          return canViewCases(currentOrganization);
+        }
         return canViewTab(currentOrganization, item.read);
       }),
-    [currentOrganization, menu],
+    [currentOrganization, menu, orgType],
   );
 
   return (