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Rare Ileal Ewing Sarcoma/Primitive Neuroectodermal Tumor on 18F-FDG PET/CT
Pan Yu1, Fei Xiaochun, Lv Jing
1From the Departments of *Nuclear Medicine, and †Pathology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China.
Abstract:
A 24-year-old woman who had melena, dizziness, and fatigue and looked pale for 2 months was confirmed to have a microcytic hypochromic anemia in the local hospital. It was further revealed that the patient had splenomegaly and a small intestinal lump, and she was then referred to our hospital. The enhanced CT showed an ileal lesion with enhancement, which showed an increased F-FDG activity in further PET/CT scanning. Lymphoma was therefore suspected, and an uncomplicated surgical resection of the ileal lesion was then performed. Nevertheless, the histopathologic and immunohistochemical examination was finally proved to be a rare ileal Ewing sarcoma/primitive neuroectodermal tumor.

