MRI and FDG PET/CT Findings of Primary Orbit Leiomyosarcoma

作者:Zhou, Weiyan; Hua, Fengchun; Qian, Jiang; Bi, Yingwen; Guan, Yihui*
来源:Clinical Nuclear Medicine, 2017, 42(1): E71-E74.
DOI:10.1097/RLU.0000000000001341

摘要

Primary leiomyosarcoma of the orbit is extremely rare. Here we report the case of a 32-year-old woman who presented with proptosis and diplopia of the left eye. MRI examination showed a solid mass in the left orbit with invasion to adjacent tissue, and the lesion had intense FDG uptake with SUVmax of 18.7 on F-18-FDG PET/CT. Primary orbit leiomyosarcoma was diagnosed by surgery-pathology. F-18-FDG PET/CT has an advantage in excluding secondary or metastatic orbit malignancy.