Cheung Hoiwan, Lawhn-Heath Courtney, Lopez Giselle, Vella Maya, Aparici Carina Mari
Geisel School of Medicine at Dartmouth, Hanover, NH, USA.
Department of Pathology, University of California, San Francisco, San Francisco, USA.
Radiol Case Rep. 2018 Mar 6;13(2):464-467. doi: 10.1016/j.radcr.2018.01.027. eCollection 2018 Apr.
Solitary fibrous tumor/hemangiopericytomas (SFT/HPC) are soft tissue tumors that can arising from the abomen, pleura, head and neck, or extremities. We report an unusual case of recurrent hemangiopericytoma in a 67-year-old female presenting with a painless and palpable mass within her right posterior neck. Eight years after initial resection of the mass, a follow-up MRI showed multiple enlarging calvarial lesions. A whole body FDG-PET/CT revealed not only hypermetabolic calvarial lesions but also numerous hypermetabolic axillary node and osseous metastases. Though the majority of these soft tissue tumors exhibit benign behavior and carry a favorable prognosis, patients with these slow growing tumors are at risk for local recurrence and distant metastases which demonstrate substantial FDG avidity. Additional studies are needed to clarify the role of whole body FDG-PET/CT in the surveillance of SFT/HPC to detect recurrent or metastatic lesions.
孤立性纤维性肿瘤/血管外皮细胞瘤（SFT/HPC）是一种软组织肿瘤，可起源于腹部、胸膜、头颈部或四肢。我们报告了一例罕见的复发性血管外皮细胞瘤病例，患者为一名67岁女性，右后颈部出现无痛性可触及肿块。肿块初次切除8年后，随访MRI显示颅骨多处病变增大。全身FDG-PET/CT不仅显示颅骨病变代谢增高，还显示多个腋窝淋巴结和骨转移灶代谢增高。尽管这些软组织肿瘤大多表现为良性行为且预后良好，但这些生长缓慢的肿瘤患者仍有局部复发和远处转移的风险，且转移灶表现出明显的FDG摄取。需要进一步研究以明确全身FDG-PET/CT在SFT/HPC监测中对检测复发或转移灶的作用。
