ALTERAÇÕES CLÍNICAS E PATOLÓGICAS DA ASPERGILOSE EM PINGUINS-DE-MAGALHÃES (Spheniscus magellanicus)

Uma série de 15 casos fatais de aspergilose em pinguins (Spheniscus magellanicus) foi observada durante um período de quatro anos em um centro de reabilitação no Sul do Brasil. Os achados clínicos e patológicos das lesões encontradas na necropsia são aqui descritos. A maioria dos animais (11/15) teve morte súbita sem evidenciar sinal clínico prévio. Em 33,3% (5/15) dos casos, aspergilose estava restrita ao trato respiratório e 66,6% demonstrou doença disseminada, com envolvimento hepático, renal, de glândulas adrenais e trato gastrointestinal. Lesões típicas se caracterizaram por nódulos granulomatosos branco-amarelados. De acordo com a literatura consultada, essa é a maior série de casos de aspergilose descrita em pinguins na América do Sul. PALAVRAS-CHAVE: aspergilose; aves marinhas; micoses; patologia; pinguins

CLINICAL AND PATHOLOGICAL FINDINGS OF ASPERGILLOSIS IN MAGELLANIC PENGUINS (Spheniscus magellanicus)

We studied a series of fifteen fatal cases of aspergillosis in penguins (Spheniscus magellanicus), seen over a 4-year period at a rehabilitation center in Southern Brazil. The clinical and pathological findings based on the lesions found at necropsy are described herein. The majority of animals (11/15) had sudden death without clinical signs. In 33.3% (5/15) of the cases, aspergillosis was restricted to the respiratory system and 66.6% showed disseminateddisease, with liver, kidney, adrenal gland and gastrointestinal tract involvement. Typical lesions were characterized as white-yellowish granulomatous nodules. To the best of our knowledge, this is the largest series of aspergillosis cases described in penguins in SouthAmerica

Clinical and pathological findings of aspergillosis in magellanic penguins (spheniscus magellanicus)

We studied a series of fifteen fatal cases of aspergillosis in penguins (Spheniscus magellanicus), seen over a 4-year period at a rehabilitation center in Southern Brazil. The clinical and pathological findings based on the lesions found at necropsy are described herein. The majority of animals (11/15) had sudden death without clinical signs. In 33.3% (5/15) of the cases, aspergillosis was restricted to the respiratory system and 66.6% showed disseminated disease, with liver, kidney, adrenal gland and gastrointestinal tract involvement. Typical lesions were characterized as white-yellowish granulomatous nodules. To the best of our knowledge, this is the largest series of aspergillosis cases described in penguins in South America.Uma série de 15 casos fatais de aspergilose em pinguins (Spheniscus magellanicus) foi observada durante um período de quatro anos em um centro de reabilitação no Sul do Brasil. Os achados clínicos e patológicos das lesões encontradas na necropsia são aqui descritos. A maioria dos animais (11/15) teve morte súbita sem evidenciar sinal clínico prévio. Em 33,3% (5/15) dos casos, aspergilose estava restrita ao trato respiratório e 66,6% demonstrou doença disseminada, com envolvimento hepático, renal, de glândulas adrenais e trato gastrointestinal. Lesões típicas se caracterizaram por nódulos granulomatosos branco-amarelados. De acordo com a literatura consultada, essa é a maior série de casos de aspergilose descrita em pinguins na América do Sul

Toxoplasmosis in a Guiana dolphin (Sotalia guianensis) from Paraná, Brazil

This study describes toxoplasmosis in a by caught Guiana dolphin (Sotalia guinensis) from Paranaguá Bay, Paraná, Brazil. Interstitial pneumonia, multisystemic arteritis, multifocal adrenalitis and hepatitis were the primary lesions observed. These tissues had moderate to severe necrosis and mononuclear cells infiltration usually surrounded by tachyzoites and tissue cysts. Moderate lymphoid depletion was evident in the spleen. Toxoplasma gondii was positive by immunohistochemical and ultrastructural evaluation. Furthermore, the animal was negative for Morbillivirus by immunohistochemistry and had low levels of persistent organochlorines. There is evidence of environmental changes in the Paranaguá Bay that could justify the occurrence of toxoplasmosis in Guiana dolphin. The sewage run-off from main urban areas and the presence of domestic and wild felids in areas surrounding the bay could be a source of T gondii oocysts from land to sea. Based on its habitat, the authors recommend this dolphin species as sentinels for the health of bays and estuaries where they occur. © 2012