diff --git a/src/pages/patientView/PatientViewPage.tsx b/src/pages/patientView/PatientViewPage.tsx
index fa027c4a2e3..107b17a0ee9 100644
--- a/src/pages/patientView/PatientViewPage.tsx
+++ b/src/pages/patientView/PatientViewPage.tsx
@@ -28,7 +28,7 @@ import {
 } from '../../shared/api/urls';
 import { PageLayout } from '../../shared/components/PageLayout/PageLayout';
 import Helmet from 'react-helmet';
-import { getServerConfig } from '../../config/config';
+import { getServerConfig, ServerConfigHelpers } from '../../config/config';
 import autobind from 'autobind-decorator';
 import { showCustomTab } from '../../shared/lib/customTabs';
 import { StudyLink } from '../../shared/components/StudyLink/StudyLink';
@@ -64,6 +64,9 @@ import setWindowVariable from 'shared/lib/setWindowVariable';
 import { getNavCaseIdsCache } from 'shared/lib/handleLongUrls';
 import PatientViewPageHeader from 'pages/patientView/PatientViewPageHeader';
 import { MAX_URL_LENGTH } from 'pages/studyView/studyPageHeader/ActionButtons';
+import { StudyViewPageStore } from 'pages/studyView/StudyViewPageStore';
+import { StudyView } from 'config/IAppConfig';
+import StudyViewURLWrapper from 'pages/studyView/StudyViewURLWrapper';
 
 export interface IPatientViewPageProps {
     routing: any;
@@ -149,10 +152,12 @@ export class PatientViewPageInner extends React.Component<
     // use this wrapper rather than interacting with the url directly
     @observable
     public urlWrapper: PatientViewUrlWrapper;
+    public studyViewUrlWrapper: StudyViewURLWrapper;
     public patientViewMutationDataStore: PatientViewMutationsDataStore;
     public patientViewCnaDataStore: PatientViewCnaDataStore;
 
     public patientViewPageStore: PatientViewPageStore;
+    public studyViewPageStore: StudyViewPageStore;
 
     constructor(props: IPatientViewPageProps) {
         super(props);
@@ -161,6 +166,9 @@ export class PatientViewPageInner extends React.Component<
         this.urlWrapper = new PatientViewUrlWrapper(props.routing);
         setWindowVariable('urlWrapper', this.urlWrapper);
 
+        this.studyViewUrlWrapper = new StudyViewURLWrapper(props.routing);
+        setWindowVariable('urlWrapper', this.urlWrapper);
+
         this.patientViewPageStore = new PatientViewPageStore(
             this.props.appStore,
             this.urlWrapper.query.studyId!,
@@ -169,6 +177,13 @@ export class PatientViewPageInner extends React.Component<
             props.cohortIds
         );
 
+        this.studyViewPageStore = new StudyViewPageStore(
+            this.props.appStore,
+            ServerConfigHelpers.sessionServiceIsEnabled(),
+            this.studyViewUrlWrapper
+        );
+        setWindowVariable('studyViewPageStore', this.studyViewPageStore);
+
         // views  don't fire the getData callback (first arg) until it's known that
         // mutation data is loaded
         // this is not a good pattern. awaits should be explicit
diff --git a/src/pages/patientView/PatientViewPageTabs.tsx b/src/pages/patientView/PatientViewPageTabs.tsx
index 86c84489da1..4f81064a674 100644
--- a/src/pages/patientView/PatientViewPageTabs.tsx
+++ b/src/pages/patientView/PatientViewPageTabs.tsx
@@ -55,6 +55,7 @@ export enum PatientViewPageTabs {
     Mtb = 'mtb',
     FollowUp = 'followUp',
     ClinicalTrialsGov = 'clinicaltrialsGov',
+    Similarity = 'similarity',
 }
 
 export const PatientViewResourceTabPrefix = 'openResource_';
@@ -876,6 +877,25 @@ export function tabs(
         </MSKTab>
     );
 
+    pageComponent.studyViewPageStore.getDataForClinicalDataTab.isComplete &&
+        tabs.push(
+            <MSKTab
+                key={44}
+                id={PatientViewPageTabs.Similarity}
+                linkText={'Similarity'}
+                unmountOnHide={false}
+            >
+                <div>
+                    {
+                        pageComponent.studyViewPageStore
+                            .getDataForClinicalDataTab.result.length
+                    }
+                    {pageComponent.studyViewPageStore.studyIds.length}
+                    {pageComponent.studyViewPageStore.selectedPatients.length}
+                </div>
+            </MSKTab>
+        );
+
     pageComponent.resourceTabs.component &&
         /* @ts-ignore */
         tabs.push(...pageComponent.resourceTabs.component);