We report the F-18 fluorodeozyglucose positron emission tomography computed tomography appearance of a biopsy-proven primary gastric sarcoma in a 24-year-old man who presented with early satiety, dyspepsia, and weight loss. Gastric sarcoma is a rare form of malignancy constituting approximately 0.3% to 8% of malignant soft tissue tumors of the stomach. The tumor appears as an ill-defined heterogeneous mass protruding off the lesser curvature of the stomach on computed tomography with central photopenia and peripheral intense uptake on positron emission tomography images.
From the *PET Imaging Science Center, Keck School of Medicine, University of Southern California, Los Angeles, CA; and †Division of Nuclear Medicine, Department of Radiology, University of Southern California, Los Angeles, CA.
Received for publication January 3, 2009; accepted March 28, 2009.
Reprints: Brian K. Gamble, MD, University of Southern California, 1510 San Pablo Street, Suite 350, Los Angeles, CA 90033. E-mail: email@example.com.