Department of Radiology, Toho University Sakura Medical Center, 564-1 Shimoshizu, Sakura 285-8741, Japan.
Jpn J Radiol. 2012 Dec;30(10):852-7. doi: 10.1007/s11604-012-0119-y. Epub 2012 Sep 12.
Liposarcomas are one of the most common soft-tissue sarcomas and commonly arise in the deep soft tissues of the extremities and retroperitoneum; however, the occurrence of liposarcomas in the foot or ankle is exceedingly rare. In this article, we present a 52-year-old man with round cell liposarcoma arising in the left foot. This tumor presented unusual manifestations of secondary osseous involvement in the metatarsal and tarsal bones of the left foot and solitary lymph node metastasis at the para-aortic region. Magnetic resonance imaging (MRI) and [(18)F]-fluoro-deoxy-glucose positron emission tomography computed tomography (FDG PET-CT) evaluation was considered to be useful for tumor grading and staging in this case.
脂肪肉瘤是最常见的软组织肉瘤之一，通常发生在四肢和腹膜后深部软组织；然而，足部或踝关节的脂肪肉瘤极为罕见。本文报道了一例发生在左足的圆形细胞脂肪肉瘤患者。该肿瘤表现出不常见的继发性骨受累，累及左足足骨和跗骨，以及腹主动脉旁的孤立性淋巴结转移。磁共振成像（MRI）和 [(18)F]-氟代脱氧葡萄糖正电子发射断层扫描计算机断层扫描（FDG PET-CT）评估被认为对该病例的肿瘤分级和分期有用。
