Freshwater sponge spicules: a new agent of ocular pathology

Memórias do Instituto Oswaldo Cruz

Cecilia Volkmer-ribeiro²  Henrique L Lenzi¹  Fernando Oréfice¹  Marcelo Pelajo-machado¹  Leandro M De Alencar²  Carlos F Fonseca¹  Twiggy Ca Batista¹  Pedro Pa Manso¹  Janice Coelho¹  Marcelo Machado¹ 

[1] ,Fundação Zoobotânica do Rio Grande do Sul Museu de Ciências Naturais Porto Alegre RS ,Brasil

关键词: Drulia uruguayensis;    Drulia ctenosclera;    eye;    ocular pathology;    sponge spicules;    foreign body;   

DOI  :  10.1590/S0074-02762006000800013

来源: SciELO

【 摘 要 】

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.

【 授权许可】

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