Marcoval Joaquim, Sabaté-Llobera Aida, Bermejo Josep, Fornons-Servent Rosa
Departments of Dermatology.
Nuclear Medicine, PET Unit-IDI.
Melanoma Res. 2020 Aug;30(4):420-422. doi: 10.1097/CMR.0000000000000530.
Despite being benign tumors, hibernomas show intense fluorine-18-fluorodeoxyglucose uptake, as they are derived from brown fat, which is frequently seen as hypermetabolic fatty areas on PET/CT. We present the case of a patient with cutaneous melanoma, diagnosed with a cervical hibernoma mimicking a metastatic lymph node at fluorine-18-fluorodeoxyglucose PET/CT. Being aware of the metabolic behavior and radiologic appearance of this entity may prevent reporting false-positive lesions, especially in an oncologic setting.
尽管冬眠瘤是良性肿瘤，但由于其起源于棕色脂肪，在正电子发射断层显像/计算机断层扫描（PET/CT）上常表现为高代谢的脂肪区域，所以会摄取大量的氟-18-氟脱氧葡萄糖。我们报告一例皮肤黑色素瘤患者，其在氟-18-氟脱氧葡萄糖PET/CT检查中被诊断为颈部冬眠瘤，误诊为转移性淋巴结。了解该病变的代谢行为和影像学表现可避免报告假阳性病变，尤其是在肿瘤学背景下。
