Ho Linh, Wassef Heidi, Henderson Robert, Seto John
PET Imaging Science Center, Division of Nuclear Medicine, Department of Radiology, Keck School of Medicine, University of Southern California, Los Angeles, California 90033, USA.
Clin Nucl Med. 2009 Apr;34(4):224-5. doi: 10.1097/RLU.0b013e31819a204a.
We report F-18 FDG PET-CT appearance of biopsy-proven intramuscular myxoma (IM) in a 69-year-old woman who presented with a left thigh mass. The tumor appears as a well-defined, hypodense mass with thin septation on CT images and mild uptake on PET images. IMs are rare benign myxoid tumors characterized by a paucity of cells, diminished vascularity, and minimal mitotic figures. They most often present as slow-growing, painless, deep-seated intramuscular masses. The mainstay of treatment is surgical resection.
我们报告了一名69岁女性经活检证实的肌内黏液瘤(IM)的F-18 FDG PET-CT表现,该患者因左大腿肿块就诊。肿瘤在CT图像上表现为边界清晰、低密度肿块,有细分隔,在PET图像上有轻度摄取。IM是罕见的良性黏液样肿瘤,其特征是细胞稀少、血管减少和有丝分裂象极少。它们最常表现为生长缓慢、无痛的深部肌内肿块。治疗的主要方法是手术切除。