FDG PET/CT in a Case of Primary Lymphoma of the Ureter.

Ran, Pengcheng; Zhou, Wenyang; Zhang, Xiaoyao; Lv, Jieqin; Dong, Aisheng · Clin Nucl Med · 2024

case_report · Level V

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Abstract

Primary lymphoma of the ureter is extremely rare. We describe the contrast-enhanced CT and FDG PET/CT findings in a case of diffuse large B-cell lymphoma transformed from mucosa-associated lymphoid tissue lymphoma limited to the left ureter. Contrast-enhanced CT showed 2 short-segment circumferential thickening and enhancement of the left pelvic and intramural ureteral wall. The thickened ureteral wall showed significantly increased FDG uptake mimicking urothelial carcinoma.

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