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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 101, No. 8, 2006, pp. 899-903
Bioline Code: oc06148
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 101, No. 8, 2006, pp. 899-903

 en Freshwater sponge spicules: a new agent of ocular pathology
Cecilia Volkmer-Ribeiro; Henrique L Lenzi; Fernando Oréfice; Marcelo Pelajo-Machado; Leandro M de Alencar; Carlos F Fonseca; Twiggy CA Batista; Pedro PA Manso; Janice Coelho & Marcelo Machado

Abstract

In a recent outbreak of human ocular injuries that occurred in the town of Araguatins, at the right bank of Araguaia river, state of Tocantins, Brazil, along the low water period of 2005, two patients (8 and 12-year-old boys) presented inferior adherent leukoma in the left eye (OS), and peripherical uveites, with snowbanking in the inferior pars plana. The third one (13-year-old girl) showed posterior uveites in OS, also with snowbanking. Histopathological analysis of lensectomy material from the three patients and vitrectomy from the last one revealed several silicious spicules (gemmoscleres) of the freshwater sponges Drulia uruguayensis and D. ctenosclera. This work brings material evidences, for the first time in the literature, that freshwater sponge spicules may be a surprising new etiological agent of ocular pathology.

Keywords
Drulia uruguayensis - Drulia ctenosclera - eye - ocular pathology - sponge spicules - foreign body

 
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