title: CT, MRI, and FDG PET/CT in a patient with alveolar soft part sarcoma.
abstract: Alveolar soft part sarcoma (ASPS) is a rare malignant soft tissue tumor. We present a case, who had a history of a left pulmonary ASPS resection 5 years ago, with a tumor in the left lower extremity showing high vascularity mimicking hemangioma on enhanced CT and MRI. This tumor showed intense FDG uptake on FDG PET/CT with SUVmax of 6.8, indicating a malignant soft tissue tumor. Complete resection of the tumor was performed. A diagnosis of ASPS was confirmed by pathology. This case highlights FDG PET/CT is helpful for differentiating ASPS from hemangioma according the degree of FDG uptake.
authors.affiliation: From the *Departments of Nuclear Medicine and †Pathology, Changhai Hospital, Shanghai 200433, China.
authors.forename: Aisheng
authors.initials: A
authors.lastname: Dong
authors.forename: Yang
authors.initials: Y
authors.lastname: Wang
authors.forename: Chao
authors.initials: C
authors.lastname: Cheng
authors.forename: Changjing
authors.initials: C
authors.lastname: Zuo
mesh_terms: D000328:Adult; D019788:Fluorodeoxyglucose F18; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D064847:Multimodal Imaging; D049268:Positron-Emission Tomography; D018234:Sarcoma, Alveolar Soft Part / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed
chemical_list: D019788:Fluorodeoxyglucose F18