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Updated: May 19, 2026

Point-of-Care Kidney and Genitourinary Ultrasound in Adults: Image Acquisition
Published on: June 21, 2024
Juxtarenal Wilms tumor in an adolescent
Jennifer Gordetsky1, Philip Katzman, Hani Rashid
1Department of Pathology and Laboratory Medicine, University of Rochester, Rochester, NY 14642-8656, USA. Jennifer_Gordetsky@urmc.rochester.edu
Abstract:
A 17-year-old boy presented for evaluation of an abdominal mass. Imaging revealed a 12.5-cm left upper pole renal mass. Biopsy demonstrated a malignant neoplasm consistent with blastemal-type Wilms tumor. The patient received neoadjuvant chemotherapy followed by laparoscopic radical nephrectomy. Examination revealed an unremarkable kidney uninvolved by tumor abutted by a 7.3 cm encapsulated mass. Histology revealed a triphasic Wilms tumor (nephroblastoma) with favorable histology. This tumor was classified as a juxtarenal Wilms tumor, a rare form of extrarenal Wilms tumor, with only 7 cases described in the literature. We present the first case of a juxtarenal Wilms tumor described in an adolescent.
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