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[Plasma-cell granuloma of the kidney pelvis]

Elena Redondo1, Agustín Rey López, Manuel Rapariz González

  • 1Servicios de Anatomía Patológica y Urología, Hospital de Gran Canaria Dr. Negrín, Las Palmas de Gran Canaria, España. arey@correo.hpino.rcanaria.es

Archivos Espanoles De Urologia
|April 18, 2002
PubMed
Abstract

Insights

This report details a rare case of plasma cell granuloma in the renal pelvis, an inflammatory pseudotumor. Early diagnosis and histopathological evaluation are crucial for managing these urinary tract mass lesions.

Area of Science:

  • Uropathology
  • Oncology

Background:

  • Plasma cell granuloma is a rare inflammatory pseudotumor.
  • Cases of renal pelvis plasma cell granuloma are exceptionally rare, with only five previously reported.

Observation:

  • A young male presented with a radiologically benign mass in the right renal pelvis causing hematuria.
  • The mass extended into the upper calices, necessitating intraoperative study via pyelotomy.

Findings:

  • Clinicopathological description of a rare renal pelvis plasma cell granuloma.
  • Light chain immunohistochemical study confirmed the diagnosis of plasma cell granuloma.
  • Histopathological diagnosis requires comprehensive tumor study and immunohistochemistry to differentiate from lymphoma or neoplastic plasma cell proliferation.

Implications:

  • Plasma cell granuloma should be considered in the differential diagnosis of renal pelvis mass lesions.
  • Accurate histopathological diagnosis is essential to distinguish inflammatory pseudotumors from malignant conditions.
  • This case highlights the importance of immunohistochemistry in diagnosing rare urinary tract pathologies.

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