From c7f1ac6294375d8ecdd6d327408faf422c4fbf91 Mon Sep 17 00:00:00 2001
From: VishalPanacea <vishal.trainee@panaceainfosec.com>
Date: Wed, 13 May 2026 14:58:03 +0530
Subject: [PATCH] crash when PixelMeasuresSequence item is undefined

---
 .../src/viewports/OHIFCornerstoneSEGViewport.tsx                | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/extensions/cornerstone-dicom-seg/src/viewports/OHIFCornerstoneSEGViewport.tsx b/extensions/cornerstone-dicom-seg/src/viewports/OHIFCornerstoneSEGViewport.tsx
index 4cc6edcc38c..ad2ec97b561 100644
--- a/extensions/cornerstone-dicom-seg/src/viewports/OHIFCornerstoneSEGViewport.tsx
+++ b/extensions/cornerstone-dicom-seg/src/viewports/OHIFCornerstoneSEGViewport.tsx
@@ -294,7 +294,7 @@ function _getReferencedDisplaySetMetadata(referencedDisplaySet, segDisplaySet) {
 
   const PixelMeasures = Array.isArray(PixelMeasuresSequence)
     ? PixelMeasuresSequence[0]
-    : PixelMeasuresSequence;
+    : PixelMeasuresSequence || {};
 
   const { SpacingBetweenSlices, SliceThickness } = PixelMeasures;