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Point-of-Care Kidney and Genitourinary Ultrasound in Adults: Image Acquisition

Point-of-Care Kidney and Genitourinary Ultrasound in Adults: Image Acquisition

Published on: June 21, 2024

Metanephric adenofibroma.

Robert M Turner Ii¹, Jeffrey J Tomaszewski, Janelle A Fox

¹Department of Urology, Children's Hospital of Pittsburgh of UPMC, Pittsburgh, Pennsylvania 15213, USA.

The Canadian Journal of Urology

|April 17, 2013

Summary

This summary is machine-generated.

A rare benign kidney tumor, metanephric adenofibroma, was diagnosed in a 10-year-old boy after flank pain. This stromal-epithelial tumor may represent a mature form of Wilms' tumor.

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Area of Science:

Pediatric oncology
Renal pathology
Surgical oncology

Background:

Wilms' tumor is the most common pediatric renal malignancy.
Metanephric adenofibroma is a rare benign tumor of the kidney.
Distinguishing benign from malignant renal masses in children is crucial for appropriate management.

Observation:

A 10-year-old boy presented with left flank pain after a fall.
Computed tomography (CT) imaging revealed a 5 cm left upper pole renal mass.
Surgical intervention involved a partial nephrectomy.

Findings:

Histopathological examination confirmed the renal mass as a metanephric adenofibroma.
Metanephric adenofibroma is a benign stromal-epithelial tumor.
This tumor is hypothesized to be a hyperdifferentiated, mature variant of Wilms' tumor.

Implications:

Accurate diagnosis of metanephric adenofibroma is essential to avoid overtreatment.
Understanding the relationship between metanephric adenofibroma and Wilms' tumor can refine diagnostic criteria.
This case highlights the importance of comprehensive histopathological analysis in pediatric renal masses.