From the *Departments of Nuclear Medicine and †Pathology, Changhai Hospital, Shanghai 200433, China.
Clin Nucl Med. 2014 Mar;39(3):265-7. doi: 10.1097/RLU.0b013e3182817b09.
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.
腺泡状软组织肉瘤（ASPS）是一种罕见的恶性软组织肿瘤。我们报告 1 例患者，5 年前曾行左肺 ASPS 切除术，左下肢有肿瘤，增强 CT 和 MRI 显示高血管性，类似于血管瘤。该肿瘤在 FDG PET/CT 上显示出强烈的 FDG 摄取，SUVmax 为 6.8，提示为恶性软组织肿瘤。行肿瘤完全切除术。病理诊断为 ASPS。本病例提示 FDG PET/CT 根据 FDG 摄取程度有助于鉴别 ASPS 与血管瘤。
