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Metanephric adenofibroma of the left kidney in an adult patient

Year: 2026

Type: article

Abstract: Metanephric adenofibroma is a rare, benign renal neoplasm arising from the embryonic metanephric tissue, which would typically give rise to normal kidney parenchyma. Despite classical presentation in pediatric patients, we present a case of a 29-year-old female with 6 months of intermittent left upper quadrant pain found to have a 3.8cm left renal mass, partially extending into the collecting system of the superior pole. The patient underwent robotic partial nephrectomy, and histopathology confirmed a diagnosis of metanephric adenofibroma with negative surgical margins. The patient had an uneventful recovery, and requires no acute follow-up, given the benign nature of her diagnosis.

Source: Urology Case Reports

DOI: 10.1016/j.eucr.2026.103385

Authors: Austin Erickson, Audra Garrigan, Trushar Patel

Institution: University of South Florida

Language: English

Topic: Renal and related cancers

Subfield: Molecular Biology

Field: Biochemistry, Genetics and Molecular Biology

Domain: Life Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $1,160