Inverted FDG Uptake Pattern in Subcutaneous Panniculitis-Like T-Cell Lymphoma
Inverted FDG Uptake Pattern in Subcutaneous Panniculitis-Like T-Cell Lymphoma
复制标题
皮下脂膜炎样 T 细胞淋巴瘤中 FDG 摄取模式的逆转
DOI：
10.1097/rlu.0000000000004451
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发表时间：
2022
影响因子：
10.6
通讯作者：
Nakamoto Yuji
中科院分区：
文献类型：
--
作者：
Koyasu Sho;Sugimoto Akihiko;Nakamoto Yuji
一位47岁女性，有2个月的皮下结节、红斑和发热病史。18例F-FDG PET图像显示与淋巴结皮下病变对应的倒置FDG摄取模式。腹股沟病变的标本显示大量的小淋巴细胞浸润在脂肪组织与边缘脂肪细胞，而很少的肿瘤细胞浸润的淋巴结。诊断为皮下脂膜炎样T细胞淋巴瘤（SPTCL）。SPTCL通常显示肿瘤细胞的分布非常有趣，即通常没有淋巴结受累。因此，该病例强调了FDG PET上的倒置积聚模式对怀疑SPTCL的重要性。
A 47-year-old woman presented with a 2-month history of subcutaneous nodules, erythema, and fever. 18 F-FDG PET images demonstrated inverted FDG uptake pattern corresponding to the subcutaneous lesion against lymph nodes. The specimen of the inguinal lesion showed massive infiltration of small lymphocytes in the adipose tissue with rimming adipocytes, whereas very few tumor cells infiltrated the lymph nodes. Subcutaneous panniculitis-like T-cell lymphoma (SPTCL) was diagnosed. SPTCL normally shows quite interesting distribution of tumor cells, that is, lymph node involvement is usually absent. Therefore, this case highlighted the importance of the inverted accumulation pattern on FDG PET to suspect SPTCL.