What's the Diagnosis? By Dr. Erica Schramm

A 63 yo F w/ a history of colon cancer, prior PE (on lovenox) presents to the ED for a "mass" on her back x 3 days. The area has increased in size and become more painful. She denies trauma. She is well appearing and hemodynamically stable. Labs are significant for a Hgb of 4.3 and an INR of 2.3. A CT scan of the chest/abdomen/pelvis is shown below. What's the diagnosis?  (scroll down for answer)


Category (Day):