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CT, MRI, and FDG PET/CT in a Patient With Alveolar Soft Part Sarcoma

Dong, Aisheng MD*; Wang, Yang MSc; Cheng, Chao MD*; Zuo, Changjing MD*

doi: 10.1097/RLU.0b013e3182817b09
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Alveolar soft part sarcoma (ASPS) is a rare malignant soft tissue tumor. We present a case, who had a history of a left pulmonary ASPS resection 5 years ago, with a tumor in the left lower extremity showing high vascularity mimicking hemangioma on enhanced CT and MRI. This tumor showed intense FDG uptake on FDG PET/CT with SUVmax of 6.8, indicating a malignant soft tissue tumor. Complete resection of the tumor was performed. A diagnosis of ASPS was confirmed by pathology. This case highlights FDG PET/CT is helpful for differentiating ASPS from hemangioma according the degree of FDG uptake.

From the *Departments of Nuclear Medicine and †Pathology, Changhai Hospital, Shanghai 200433, China.

Received for publication September 12, 2012; revision accepted November 29, 2012.

Conflicts of interest and sources of funding: Aisheng Dong was sponsored by a Young Scholar Grant from the National Natural Science Foundation of China (81000601).

Reprints: Changjing Zuo, MD, Department of Nuclear Medicine, Changhai Hospital, 168 Changhai Road, Yangpu District, Shanghai 200433, China. E-mail:

© 2014 by Lippincott Williams & Wilkins