Journal
CLINICAL NUCLEAR MEDICINE
Volume 46, Issue 9, Pages 759-760Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/RLU.0000000000003645
Keywords
metanephric adenoma; kidney; Tc-99m-MIBI
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Metanephric adenoma is a rare benign renal tumor that can appear as a cold spot on imaging, mimicking renal cell carcinoma. This case highlights the importance of accurate imaging techniques in diagnosing such tumors.
Metanephric adenoma is a rare benign renal tumor. A 49-year-old woman presented with a left renal pelvic mass detected by ultrasound. Enhanced CT of the kidney showed slight enhancement of the mass. For characterization of the mass, Tc-99m-MIBI SPECT/CT was performed showing photopenia of the mass. Renal cell carcinoma was suspected. The mass was removed surgically. Metanephric adenoma was confirmed by histopathology. This case indicates that metanephric adenoma can appear cold on Tc-99m-MIBI SPECT/CT, mimicking renal cell carcinoma.
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