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Antral Pad Sign

Dr Yuranga Weerakkody and Dr Umamaheshwar Reddy et al.

An antral pad sign is a feature seen on a spot radiograph of the upper gastrointestinal tract obtained with orally administered contrast material. It refers to the the extrinsic impression or indentation on the postero-inferior aspect of the antrum. The impression is generally arcuate and smooth, and it may or may not be associated with an impression on the medial aspect of the duodenum.

Differentials to be considered when antral pad sign is seen are.

  1. pancreatic carcinoma head /body
  2. pancreatitis
  3. pancreatic pseudocyst
  4. normal distended gallbladder when patient in right anterior oblique position

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