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Related Experiment Video

Updated: May 12, 2026

Robotic Spleen-Preserving Distal Pancreatectomy: The Warshaw and Kimura Techniques

Robotic Spleen-Preserving Distal Pancreatectomy: The Warshaw and Kimura Techniques

Published on: July 26, 2024

Pararenal sclerosing PEComa.

Ricardo R Leão¹, Bruno Jorge Pereira, Vânia Grenha

¹Serviço de Urologia e Transplantação Renal, Centro Hospitalar Universitário de Coimbra, Portugal. romaoleao@gmail.com

BMJ Case Reports

|April 20, 2013

Summary

Diagnosing small renal or pararenal masses is challenging. This case report highlights a rare sclerosing perivascular epithelioid cell tumor (PEComa), emphasizing the need for histological analysis and further data for diagnosis and prognosis.

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Last Updated: May 12, 2026

Robotic Spleen-Preserving Distal Pancreatectomy: The Warshaw and Kimura Techniques

Robotic Spleen-Preserving Distal Pancreatectomy: The Warshaw and Kimura Techniques

Published on: July 26, 2024

Area of Science:

Oncology
Radiology
Pathology

Background:

Small renal, pararenal masses, and retroperitoneal lesions pose diagnostic challenges.
Current diagnostic methods rely heavily on histological findings despite advancements in imaging.
Clinical and radiological findings offer limited diagnostic certainty for these rare lesions.

Observation:

Presents a rare case of a pararenal sclerosing perivascular epithelioid cell tumor (PEComa).
Diagnosis of this specific PEComa subtype necessitates invasive procedures and histopathological examination.
The uncertain behavior of this rare tumor complicates patient management and prognosis.

Findings:

Histological analysis is currently the definitive method for diagnosing pararenal sclerosing PEComa.
The rarity and uncertain behavior of this PEComa present significant challenges in clinical practice.
This case report aims to contribute data for establishing diagnostic and follow-up criteria.

Implications:

Highlights the critical role of histopathology in diagnosing rare retroperitoneal tumors.
Underscores the need for improved diagnostic criteria and follow-up strategies for PEComas.
Contributes to the limited body of knowledge on the behavior and management of pararenal sclerosing PEComa.