diff --git a/extensions/cornerstone/src/toolbarModule.js b/extensions/cornerstone/src/toolbarModule.js
index 199891c20..801466f9b 100644
--- a/extensions/cornerstone/src/toolbarModule.js
+++ b/extensions/cornerstone/src/toolbarModule.js
@@ -130,6 +130,15 @@ const definitions = [
         commandName: 'setToolActive',
         commandOptions: { toolName: 'Magnify' },
       },
+      {
+        id: 'WwwcRegion',
+        label: 'ROI Window',
+        icon: 'stop',
+        //
+        type: TOOLBAR_BUTTON_TYPES.SET_TOOL_ACTIVE,
+        commandName: 'setToolActive',
+        commandOptions: { toolName: 'WwwcRegion' },
+      },
       {
         id: 'DragProbe',
         label: 'Probe',
diff --git a/platform/ui/src/elements/Icon/getIcon.js b/platform/ui/src/elements/Icon/getIcon.js
index 9a4bc8370..010af637c 100644
--- a/platform/ui/src/elements/Icon/getIcon.js
+++ b/platform/ui/src/elements/Icon/getIcon.js
@@ -34,6 +34,7 @@ import exclamationCircle from './icons/exclamation-circle.svg';
 import exclamationTriangle from './icons/exclamation-triangle.svg';
 import fastBackward from './icons/fast-backward.svg';
 import fastForward from './icons/fast-forward.svg';
+import stop from './icons/stop.svg';
 import info from './icons/info.svg';
 import inlineEdit from './icons/inline-edit.svg';
 import level from './icons/level.svg';
@@ -131,6 +132,7 @@ const ICONS = {
   'lock-alt': lockAlt,
   'step-backward': stepBackward,
   'step-forward': stepForward,
+  stop,
   'th-large': thLarge,
   'th-list': thList,
   sun,