RESUMO

Background: Phoenicopterus chilensis is a South American wild bird classified as a near threatened specie in the List ofEndangered Species of the International Union for Conservation of Nature. With the increase of the contact between human population and wild animals, this species habitat is becoming increasingly vulnerable, with a declining population.Due to the importance of its conservation, the knowledge of abnormalities that affect this species becomes essential. Thisreport aims to describe the first diagnosed case of unilateral renal agenesis in chilean-flamingo.Case: A captive male chilean-flamingo (Phoenicopterus chilensis) was found dead in its enclosure and then was referredat necropsy. The cause of death was the presence of tracheal fungal granuloma, caused by Aspergillus sp. Macroscopically,during the examination of the body cavity, the absence of the right kidney was noted, also evidencing the absence of thecaudal renal vein. Emerging from the caudal division of the kidney was noted a blind-end renal vessel. For the histopathological examination, the remaining kidney was fixed in 10% formalin, processed by paraffin embedding technique andstained with Hematoxylin and Eosin (HE). When analyzing the left kidney parenchyma, preserved histological architecturewas noted, without any changes in the tissue structures of the organ. Thus, no hypertrophy by compensatory mechanismsof the remaining kidney was observed.Discussion: Unilateral renal agenesis is a very rare congenital defect in dogs, cats and also in birds. It occurs in the complete absence of one of the kidneys, a situation with which the animal can live satisfactorily if there is a normal kidney toassume the functions. In association, ipsilateral ureteral agenesis and compensatory...(AU)

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RESUMO

Background: Phoenicopterus chilensis is a South American wild bird classified as a near threatened specie in the List ofEndangered Species of the International Union for Conservation of Nature. With the increase of the contact between human population and wild animals, this species’ habitat is becoming increasingly vulnerable, with a declining population.Due to the importance of its conservation, the knowledge of abnormalities that affect this species becomes essential. Thisreport aims to describe the first diagnosed case of unilateral renal agenesis in chilean-flamingo.Case: A captive male chilean-flamingo (Phoenicopterus chilensis) was found dead in its enclosure and then was referredat necropsy. The cause of death was the presence of tracheal fungal granuloma, caused by Aspergillus sp. Macroscopically,during the examination of the body cavity, the absence of the right kidney was noted, also evidencing the absence of thecaudal renal vein. Emerging from the caudal division of the kidney was noted a blind-end renal vessel. For the histopathological examination, the remaining kidney was fixed in 10% formalin, processed by paraffin embedding technique andstained with Hematoxylin and Eosin (HE). When analyzing the left kidney parenchyma, preserved histological architecturewas noted, without any changes in the tissue structures of the organ. Thus, no hypertrophy by compensatory mechanismsof the remaining kidney was observed.Discussion: Unilateral renal agenesis is a very rare congenital defect in dogs, cats and also in birds. It occurs in the complete absence of one of the kidneys, a situation with which the animal can live satisfactorily if there is a normal kidney toassume the functions. In association, ipsilateral ureteral agenesis and compensatory...

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RESUMO

Relata-se o caso de um quati, recebido pela Divisão Fauna Silvestre da Prefeitura de São Paulo e mantido emcativeiro pela impossibilidade de reintrodução do mesmo ao seu habitat natural. Possuindo cerca de três anosde idade, apresentou anorexia, espirros e andar cambaleante, respondendo ao tratamento clínico. Passadosquatro meses, apresentou perda de peso, prostração, mucosas hipocoradas, apatia e diarréia persistente. Noexame físico, havia marcante aumento de volume abdominal. Os exames hematológicos, bioquímicos e aurinálise apresentavam-se alterados. O exame ultrassonográfico abdominal sugeriu um processo neoplásico.A partir dessa suspeita e do intenso sofrimento apresentado pelo animal, optou-se pela eutanásia. O examenecroscópico revelou a presença de formações de consistência macia e coloração esbranquiçada em rins, pulmão,mucosa gástrica e cavidade abdominal. Havia linfonodomegalia e discreta enterite. O exame histopatológicodemonstrou infiltração de células neoplásicas em diversos órgãos e proliferação neoplásica linfocitáriaem linfonodos e em formação abdominal. O quadro microscópico foi compatível com Linfoma de baixo grau,com metástase. Devido à distribuição das lesões, foi classificado como linfoma multicêntrico. O estudo imunohistoquímiconão permitiu definir a histogênese das células neoplásicas, porém os aspectos morfológicosfavoreceram o diagnóstico de linfoma. Este é o primeiro relato de caso de linfoma multicêntrico em quati.(AU)

This is a report of case of a coati received by the Wildlife Division of São Paulo City Hall. It was held incaptivity by the impossibility of reintroduction to its natural habitat. When it was nearly three years old, it had anorexia, sneezing and incoordination, responding to medical treatment. After four months, itshowed weight loss, prostration, pale mucous membranes, lethargy, and persistent diarrhea. On physicalexamination, there was marked abdominal distension. The hematological, biochemical and urinalysiswere abnormal. The abdominal ultrasound suggested a neoplastic process. From that suspicion and intensesuffering brought by the animal, it was decided to euthanasia. The necropsy revealed the presenceof formations with a soft consistency and whitish coloration in kidney, lung, gastric mucosa and abdominalcavity. There was lymphadenopathy and mild enteritis. Histopathological examination showedinfiltration of neoplastic cells in various organs and neoplastic lymphocyte proliferation in lymph nodesand abdominal mass. The microscopic picture was compatible with low-grade lymphoma, metastatic.Due to the distribution of lesions, it was classified as multicentric lymphoma. An immunohistochemicalstudy did not allow defining the histogenesis of the neoplastic cells, but morphological features favoredthe diagnosis of lymphoma. This is the first case report of multicentric lymphoma in coati.(AU)

Assuntos

RESUMO

Relata-se o caso de um quati, recebido pela Divisão Fauna Silvestre da Prefeitura de São Paulo e mantido emcativeiro pela impossibilidade de reintrodução do mesmo ao seu habitat natural. Possuindo cerca de três anosde idade, apresentou anorexia, espirros e andar cambaleante, respondendo ao tratamento clínico. Passadosquatro meses, apresentou perda de peso, prostração, mucosas hipocoradas, apatia e diarréia persistente. Noexame físico, havia marcante aumento de volume abdominal. Os exames hematológicos, bioquímicos e aurinálise apresentavam-se alterados. O exame ultrassonográfico abdominal sugeriu um processo neoplásico.A partir dessa suspeita e do intenso sofrimento apresentado pelo animal, optou-se pela eutanásia. O examenecroscópico revelou a presença de formações de consistência macia e coloração esbranquiçada em rins, pulmão,mucosa gástrica e cavidade abdominal. Havia linfonodomegalia e discreta enterite. O exame histopatológicodemonstrou infiltração de células neoplásicas em diversos órgãos e proliferação neoplásica linfocitáriaem linfonodos e em formação abdominal. O quadro microscópico foi compatível com Linfoma de baixo grau,com metástase. Devido à distribuição das lesões, foi classificado como linfoma multicêntrico. O estudo imunohistoquímiconão permitiu definir a histogênese das células neoplásicas, porém os aspectos morfológicosfavoreceram o diagnóstico de linfoma. Este é o primeiro relato de caso de linfoma multicêntrico em quati.

This is a report of case of a coati received by the Wildlife Division of São Paulo City Hall. It was held incaptivity by the impossibility of reintroduction to its natural habitat. When it was nearly three years old, it had anorexia, sneezing and incoordination, responding to medical treatment. After four months, itshowed weight loss, prostration, pale mucous membranes, lethargy, and persistent diarrhea. On physicalexamination, there was marked abdominal distension. The hematological, biochemical and urinalysiswere abnormal. The abdominal ultrasound suggested a neoplastic process. From that suspicion and intensesuffering brought by the animal, it was decided to euthanasia. The necropsy revealed the presenceof formations with a soft consistency and whitish coloration in kidney, lung, gastric mucosa and abdominalcavity. There was lymphadenopathy and mild enteritis. Histopathological examination showedinfiltration of neoplastic cells in various organs and neoplastic lymphocyte proliferation in lymph nodesand abdominal mass. The microscopic picture was compatible with low-grade lymphoma, metastatic.Due to the distribution of lesions, it was classified as multicentric lymphoma. An immunohistochemicalstudy did not allow defining the histogenesis of the neoplastic cells, but morphological features favoredthe diagnosis of lymphoma. This is the first case report of multicentric lymphoma in coati.

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