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Image of the Month—Quiz Case FREE

C. Clay Cothren, MD; Waleed L. Lutfiyya, MD; Fernando J. Kim, MD; David J. Ciesla, MD
[+] Author Affiliations

Section Editor: Grace S. Rozycki, MD


Arch Surg. 2006;141(9):941. doi:10.1001/archsurg.141.9.941-a.
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A 30-year-old woman presented to the emergency department complaining of left flank pain. She denied associated symptoms and had no previous episodes. Her medical history was remarkable for obesity, non–insulin dependent diabetes mellitus, and a laparoscopic cholecystectomy. Laboratory results were all within normal limits. Computed tomography revealed no acute inflammatory process or renal stones but did demonstrate a left retroperitoneal mass located separate from but medial to the kidney and below the left renal vein; the mass was solid and well circumscribed, measuring 4.5 × 3.8 cm (Figure 1). Her abdominal pain subsequently resolved and results of workup for a functional endocrine tumor were negative.

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Figure 1.

Computed tomographic scan demonstrating a 4.5 × 3.8-cm, solid mass (arrow) just below the level of the left renal vein, separate from the kidney and collecting system.

Graphic Jump Location

WHAT IS THE DIAGNOSIS?

A. Retroperitoneal sarcoma

B. Lymphoma

C. Schwannoma

D. Neurofibroma

Figures

Place holder to copy figure label and caption
Figure 1.

Computed tomographic scan demonstrating a 4.5 × 3.8-cm, solid mass (arrow) just below the level of the left renal vein, separate from the kidney and collecting system.

Graphic Jump Location

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The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
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