Liesegang Rings in Xanthogranulomatous Pyelonephritis: A Case Report

Liesegang rings are concentric noncellular lamellar structures, rarely seen in vivo, occurring as a consequence of the accumulation of insoluble products in a colloidal matrix. These characteristic structures are a rare phenomenon usually found in association with cystic or inflammatory lesions and...

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Bibliographic Details
Published in:Pathology Research International 2010-01, Vol.2010 (2010), p.82-84
Main Authors: Pegas, Karla Lais, Edelweiss, Maria Isabel Albano, Cambruzzi, Eduardo, Zettler, Cláudio Galleano
Format: Article
Language:English
Subjects:
Care and treatment
Case Report
Case studies
CT imaging
Diagnosis
Methods
Observations
Precipitation (Chemistry)
Pyelonephritis
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Summary:Liesegang rings are concentric noncellular lamellar structures, rarely seen in vivo, occurring as a consequence of the accumulation of insoluble products in a colloidal matrix. These characteristic structures are a rare phenomenon usually found in association with cystic or inflammatory lesions and may be mistaken for parasites. The authors examined Liesegang rings from an inflammatory kidney lesion identified previously as a tumoral lesion on computerized tomography. On microscopic evaluation, Liesegang rings can be mistaken for eggs and larvae of parasites, psammoma bodies and calcification. Special stains like PAS, Grocott, von Kossa and Masson's trichrome facilitate the diagnosis.
ISSN:2090-8091
2042-003X
2042-003X
DOI:10.4061/2010/602523