diff --git a/atlas/templates/atlas/case_display_block.html b/atlas/templates/atlas/case_display_block.html
index 7a67b10f..a14a4199 100755
--- a/atlas/templates/atlas/case_display_block.html
+++ b/atlas/templates/atlas/case_display_block.html
@@ -1203,6 +1203,7 @@
         document.querySelectorAll(".view-displayset-modal").forEach(button => {
             button.addEventListener("click", function () {
                 const url = this.getAttribute("data-url");
+                const dsId = this.getAttribute('data-ds-id');
                 dsModalBody.innerHTML = "<p>Loading...</p>";
                 fetch(url)
                     .then(response => response.text())
@@ -1211,8 +1212,13 @@
                         // attach url to fullscreen button so it knows what to load
                         try {
                             const fsBtn = document.querySelector('.displayset-fullscreen-btn');
-                            if (fsBtn) fsBtn.dataset.url = url;
+                            if (fsBtn) {
+                                fsBtn.dataset.url = url;
+                                if (dsId) fsBtn.dataset.dsId = dsId;
+                            }
                         } catch (e) { console.warn(e); }
+                        // add URL param so modal can be reopened after reload
+                        try { setUrlParam('displayset', dsId); } catch (e) { /* ignore */ }
                         setTimeout(function () {
                             try { window.mountDicomViewers(); } catch (e) { console.warn('mountDicomViewers not available', e); }
                         }, 500);
@@ -1225,14 +1231,22 @@
             });
         });
 
+        // remove displayset param when modal closed
+        document.getElementById('displaysetModal').addEventListener('hidden.bs.modal', function () {
+            try { removeUrlParam('displayset'); removeUrlParam('displayset_full'); } catch (e) {}
+        });
+
         // Fullscreen button handler: fetch the same displayset content but lay out viewer left, details right
         document.querySelectorAll('.displayset-fullscreen-btn').forEach(btn => {
             btn.addEventListener('click', function () {
                 const url = btn.dataset.url;
                 if (!url) return;
+                const dsId = btn.dataset.dsId || (new URL(url, window.location.origin)).searchParams.get('displayset') || null;
                 // show loading state
                 document.getElementById('displaysetFullscreenLeft').innerHTML = '<p style="color:#fff; padding:1rem;">Loading viewer...</p>';
                 document.getElementById('displaysetFullscreenRight').innerHTML = '<p>Loading details...</p>';
+                // set URL params for fullscreen
+                try { if (dsId) { setUrlParam('displayset', dsId); setUrlParam('displayset_full', '1'); } } catch (e) {}
 
                 fetch(url)
                     .then(response => response.text())
@@ -1278,6 +1292,71 @@
             });
         });
 
+        // remove fullscreen param when fullscreen modal closed
+        document.getElementById('displaysetFullscreenModal').addEventListener('hidden.bs.modal', function () {
+            try { removeUrlParam('displayset_full'); } catch (e) {}
+        });
+
+        // FINDING modal: push/remove param so it can be reopened after reload
+        document.querySelectorAll(".view-finding-modal").forEach(button => {
+            button.addEventListener("click", function () {
+                const findingId = this.getAttribute("data-finding-id");
+                try { setUrlParam('finding', findingId); } catch (e) {}
+            });
+        });
+        document.getElementById('findingModal').addEventListener('hidden.bs.modal', function () {
+            try { removeUrlParam('finding'); } catch (e) {}
+        });
+
+        // Helper: set/remove URL search params without reloading
+        function setUrlParam(key, value) {
+            if (!key) return;
+            const url = new URL(window.location.href);
+            if (value === null || value === undefined) {
+                url.searchParams.delete(key);
+            } else {
+                url.searchParams.set(key, value);
+            }
+            window.history.replaceState({}, '', url.toString());
+        }
+
+        function removeUrlParam(key) {
+            const url = new URL(window.location.href);
+            url.searchParams.delete(key);
+            window.history.replaceState({}, '', url.toString());
+        }
+
+        // On load: reopen modals if URL params present
+        (function reopenModalsFromUrl() {
+            const params = new URL(window.location.href).searchParams;
+            const dsId = params.get('displayset');
+            const dsFull = params.get('displayset_full');
+            const findingId = params.get('finding');
+            if (dsId) {
+                // try to find a button for this displayset and click it
+                const btn = document.querySelector(`.view-displayset-modal[data-ds-id="${dsId}"]`);
+                if (btn) {
+                    // open fullscreen if requested
+                    if (dsFull) {
+                        // ensure the modal content is loaded then trigger fullscreen
+                        btn.click();
+                        // wait for content then trigger fullscreen button
+                        setTimeout(function () {
+                            const fs = document.querySelector('.displayset-fullscreen-btn');
+                            if (fs) fs.click();
+                        }, 800);
+                    } else {
+                        btn.click();
+                    }
+                    return;
+                }
+            }
+            if (findingId) {
+                const fbtn = document.querySelector(`.view-finding-modal[data-finding-id="${findingId}"]`);
+                if (fbtn) fbtn.click();
+            }
+        })();
+
     });