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Updated: May 16, 2026

Identifying, Diagnosing, and Grading Malignant Peripheral Nerve Sheath Tumors in Genetically Engineered Mouse Models

Identifying, Diagnosing, and Grading Malignant Peripheral Nerve Sheath Tumors in Genetically Engineered Mouse Models

Published on: May 17, 2024

[Retroperitoneal schwannoma].

P G Mirpuri-Mirpuri¹, M M Álvarez-Cordovés, A Pérez-Monje

¹Medicina de Familia y Comunitaria, Centro de Salud Doctor Guigou, Tenerife, España.

|November 14, 2012

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Retroperitoneal Schwannomas are rare tumors arising from peripheral nerves. This case highlights their incidental discovery during hypertension assessment, emphasizing potential complications despite benign histology.

Area of Science:

Oncology
Pathology
Radiology

Background:

Schwannomas, also known as neurilemmomas, originate from Schwann cells of the peripheral nervous system.
Retroperitoneal Schwannomas are exceptionally rare, constituting only 0.7% to 2.7% of all Schwannomas.
These tumors are typically slow-growing and often asymptomatic, frequently discovered as incidental radiographic findings.

Purpose of the Study:

To report a case of retroperitoneal Schwannoma.
To emphasize the diagnostic challenges and clinical significance of retroperitoneal Schwannomas.
To highlight the importance of considering rare tumors in differential diagnoses, even when incidental findings.

Main Methods:

Case report presentation.
Review of patient's medical history and diagnostic workup for hypertension.

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Identifying, Diagnosing, and Grading Malignant Peripheral Nerve Sheath Tumors in Genetically Engineered Mouse Models

Identifying, Diagnosing, and Grading Malignant Peripheral Nerve Sheath Tumors in Genetically Engineered Mouse Models

Published on: May 17, 2024

Radiographic imaging for abdominal mass identification.

Main Results:

An abdominal mass was identified as the principal finding during a systematic examination for hypertension.
The mass was diagnosed as a retroperitoneal Schwannoma, a rare tumor in this location.
The tumor was an incidental finding, with no specific symptoms related to its presence.

Conclusions:

Retroperitoneal Schwannomas, though rare and histologically benign, require careful consideration due to potential complications like adjacent structure compression.
Incidental radiographic findings of abdominal masses warrant thorough investigation to rule out rare tumors.
Early detection and management are crucial, despite the slow-growing nature and often asymptomatic presentation of these tumors.