Man in his late forties with left renal mass    

History and CT images

Our appreciation is extended to Drs. Nada Shaker and Anil Parwani at Ohio State University for contributing this case.

History: A man in his late forties with a history of GERD, hypertension, Wolff-Parkinson-White syndrome ablation, and a ventriculoperitoneal shunt secondary to hydrocephalus presented for evaluation of a left renal mass found incidentally during a previous MRI. A follow-up MRI of the abdomen revealed a left lower pole 1.6-cm enhancing renal mass which caused concern for renal cell carcinoma. A partial nephrectomy was performed.

Serial sectioning of the specimen revealed a 1.5 × 1.4 × 1.1 cm well-circumscribed, rubbery mass with tan-pink, homogeneous, solid cut surfaces that was less than 0.1 cm from the capsular surface and 0.2 cm from the renal parenchymal margin. The mass was limited to the kidney and did not appear to involve the perinephric fat. Pallor was noted surrounding the uninvolved renal parenchyma. Click images to enlarge.