From the Nuclear Medicine Service, Department of Radiology, New Jersey Medical School, Rutgers University, Newark, NJ.
Clin Nucl Med. 2020 Mar;45(3):248-249. doi: 10.1097/RLU.0000000000002895.
Pseudomyogenic hemangioendothelioma is a rare vascular tumor described as a fibroma-like variant of epithelioid sarcoma. There were scant publications about FDG PET/CT findings of pseudomyogenic hemangioendothelioma. A 20-year-old man with biopsy-confirmed pseudomyogenic hemangioendothelioma of the left tibia had FDG PET/CT for evaluation of the lesion extent and metastasis, which demonstrated numerous, multilayer FDG-avid lesions of the left lower extremity below the knee. Although pathologic examination is mandatory for diagnosis, FDG PET/CT of the case showed distinctive image finding of pseudomyogenic hemangioendothelioma: multifocal and multilayer lesions in a single distal lower extremity.
假性肌源性血管内皮细胞瘤是一种罕见的血管肿瘤，被描述为上皮样肉瘤的纤维瘤样变体。关于假性肌源性血管内皮细胞瘤的 FDG PET/CT 表现，文献报道较少。本文报道了 1 例左胫骨经活检证实的假性肌源性血管内皮细胞瘤患者，行 FDG PET/CT 检查以评估病变范围和转移情况，结果显示左膝以下下肢有多个、多层 FDG 摄取病灶。虽然病理检查是诊断的必要条件，但本例 FDG PET/CT 显示了假性肌源性血管内皮细胞瘤的独特影像表现：单一远侧下肢的多发病灶和多层病灶。
