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 colloidalmatrix. These characteristic structures are a rare phenomenon usually found in association with cystic or inflammatory lesions and m...

ver descrição completa

Detalhes bibliográficos
Autores: Pêgas, Karla Lais, Edelweiss, Maria Isabel Albano, Cambruzzi, Eduardo, Zettler, Claudio Galleano
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2010
País:Brasil
Recursos:Universidade Federal do Rio Grande do Sul (UFRGS)
Repositorio:Repositório Institucional da UFRGS
Idioma:inglés
OAI Identifier:oai:www.lume.ufrgs.br:10183/148468
Acesso em linha:http://hdl.handle.net/10183/148468
Access Level:acceso abierto
Palavra-chave:Pielonefrite xantogranulomatosa
Diagnóstico
Descrição
Resumo:Liesegang rings are concentric noncellular lamellar structures, rarely seen in vivo, occurring as a consequence of the accumulation of insoluble products in a colloidalmatrix. 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.