Can you diagnose this lesion?

Each month, Dr. Maria Flynn issues a Radiology Challenge, presenting images from one of a variety of imaging modalities and a case report. Can you diagnose the condition? Follow the link to find out whether your answer was correct, what was really wrong with the patient, and how the patient was treated. Then, come back next month to test your radiographic reading skills on a new case!

Maria Flynn, MD

GU Imaging Chief

Radiology Intern

Program Director

Department of Radiology

Naval Medical Center Portsmouth

Portsmouth, VA

Dr. Maria Flynn is Chief of Genitourinary Imaging and Radiology Intern Program Director at the Naval Medical Center Portsmouth, as well as a Lieutenant Commander in the US Navy Medical Corps. She received her medical degree from Tulane Medical School in 1994 and completed her radiology residency at the National Capital Consortium in 2003. She is certified by the American Board of Radiology and has been appointed Adjunct Assistant Professor of Radiology and Radiological Sciences at the F. Edward Hébert School of Medicine.

A 60-year-old man presented to his primary care physician due to a mass in his abdomen. He stated that the mass had been there for years, but it started bothering him after his recent weight loss. Laboratory analysis was unremarkable. A contrast-enhanced computed tomography scan of the abdomen and pelvis was performed (Figure).

Challenge: What is your best diagnosis?

a) Lymphoma

b) Undifferentiated pleomorphic sarcoma

c) Gastrointestinal stromal tumor

d) Duplication cyst

e) Pancreatic pseudocyst