18 F-FDG PET/CT in a Patient With Anal Angiosarcoma.
Xueqi Chen, Yongchen Zhang, Caixia Wu et al.
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Case in brief
A 42-year-old man with a history of multiple myeloma and chemotherapy presented with a rapidly enlarging anal mass over two months. Imaging with 18 F-FDG PET/CT revealed a soft tissue mass in the anal region with increased uptake. Surgical pathology confirmed the diagnosis of moderately to well-differentiated anal angiosarcoma.
Diagnostic / clinical pearl
Clinicians should consider anal angiosarcoma in patients with a history of malignancy presenting with a new anal mass, as imaging can reveal significant metabolic activity.