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Sidrim, José Júlio Costa; Carvalho, Vitor Luz; Maia, Débora Castelo Branco de Souza Collares; Brilhante, Raimunda Sâmia Nogueira; Meirelles, Ana Carolina Oliveira de; Silva, Cristine Pereira Negrão; Cordeiro, Rossana de Aguiar; Moreira, José Luciano Bezerra; Bandeira, Tereza de Jesus Pinheiro Gomes; Rocha, Marcos Fábio Gadelha
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2015 |
Bipolaris hawaiiensis as an emerging cause of cutaneous phaeohyphomycosis in an Antillean manatee Trichechus manatus manatus.
Diseases of Aquatic Organisms 113(1): 69-73. 3 figs. DOI: 10.3354/dao02827. Feb. 10, 2015.
–ABSTRACT: Phaeohyphomycoses are emerging and opportunistic diseases caused by dematiaceous fungi that infect many animal species. This paper describes a case of cutaneous phaeohyphomycosis in an Antillean manatee Trichechus manatus manatus caused by Bipolaris hawaiiensis. Blackish skin lesions were observed in an Antillean manatee calf held captive in Brazil. Direct examination of skin scraping from the affected areas revealed the presence of dematious hyphae. Culture of skin fragments led to the isolation and subsequent identification of B. hawaiiensis as the etiologic agent. Treatment with itraconazole for 14 d was effective. Infections by Bipolaris spp. are rare in animals, and this is the first report of B. hawaiiensis in veterinary medicine.
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Carvalho, Vitor Luz; Groch, K. R.; Catão-Dias, J. L.; Meirelles, Ana Carolina Oliveira de; Silva, Cristine Pereira Negrão; Monteiro, A. N. B.; Díaz-Delgado, J.
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2019 |
Cerebral and cardiac congenital malformations in neonatal West Indian manatees (Trichechus manatus).
Jour. Comparative Pathology 166: 29-34. doi.org/10.1016/j.jcpa.2018.10.173 Jan. 2019 (publ. online Nov. 30, 2018).
–ABSTRACT: Strandings of live new-born West Indian manatees (WIMs; Trichechus manatus) are one of the main challenges for the conservation of this species in Brazil, particularly in the northeastern states. Congenital malformations (CMs) are rare in sirenians. We identified CMs in two of 19 stranded WIMs that were rescued, rehabilitated and subjected to complete pathological examinations in Ceará and Rio Grande do Norte States between 1992 and 2017. In case 1, dilation of the cerebral lateral and fourth ventricles with abundant cerebrospinal fluid (internal hydrocephalus), was diagnosed. Furthermore, this animal developed necrotizing enterocolitis associated with pneumatosis intestinalis and aspiration pneumonia late during rehabilitation. Cardiac malformations in case 2 included: right ventricle hypoplasia with marked stenosis of the tricuspid outflow, high ventricular septal defect, segmental pulmonary artery aneurysm, mitral valve haemocyst and left ventricular hypertrophy. Herein, we provide the first description of a neural tube defect, specifically a developmental internal hydrocephalus, and multiple cardiac congenital anomalies, together with their respective clinicopathological features in manatees. Although the aetiology of the CMs remains unknown in these cases, a genetic basis is plausible given the low genetic variability in this population. These cases add to the body of knowledge on health and disease aspects of manatees and may provide scientific basis for future medical and conservation efforts on neonatal WIMs.
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Bibliography and Index of the Sirenia and Desmostylia 