A 51-Year-Old Male With Abdominal Distention, Pain, and A Retroperitoneal Mass

August 14, 2019
Mehmet Sitki Copur, MD
Mehmet Sitki Copur, MD

,
Adam J. Horn, MD
Adam J. Horn, MD

A 51-year-old man noticed abdominal swelling and distention with intermittent abdominal pain, early satiety, and decreased appetite over the past several months. A computed tomography scan of the abdomen is performed. What's your diagnosis?

A 51-year-old man noticed abdominal swelling and distention with intermittent abdominal pain, early satiety, and decreased appetite over the past several months. A computed tomography (CT) scan of the abdomen showed massive fat containing omental mass with a dominant solid component in the center (Figure A). After a CT guided biopsy (Figure B), he underwent surgical resection of this large retroperitoneal mass revealing a 33-pound macroscopic tumor (Figure C).

Based on the images shown, what is your diagnosis?