Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/42198
Título: Pyogranulomatous obliterative laryngotracheitis by Rhizopus arrhizus (syn. R. oryzae) in a free-ranging Atlantic spotted dolphin Stenella frontalis
Autores/as: Cerezo, Argiñe
Quesada-Canales, Óscar 
Sierra, Eva 
Díaz-Delgado, Josué 
Fernandez, Antonio 
Henningson, Jamie
Arbelo, Manuel 
Clasificación UNESCO: 240111 Patología animal
3109 Ciencias veterinarias
Palabras clave: Cetacean pathology
Fungal infection
Marine mammal
Mycosis
Zygomycetes
Fecha de publicación: 2018
Editor/a: 0177-5103
Publicación seriada: Diseases of Aquatic Organisms 
Resumen: We report the gross and microscopic findings and molecular identification of fungal hyphate infection in a juvenile female Atlantic spotted dolphin Stenella frontalis found dead off Arguineguin, Gran Canaria (Canary Islands, Spain). On necropsy examination, the animal had a large cranial intrathoracic mass and multiple variably-sized nodules throughout the larynx and trachea that obliterated the lumen. Microscopically, the masses were composed of abundant pyogranulomatous inflammation with numerous fungal hyphae. These were pauciseptate (coenocytic) and had non-parallel walls, non-dichotomous irregular to right angle branching, and bulbous dilations. PCR analysis from these inflammatory foci yielded Rhizopus arrhizus (syn. R. oryzae). This fungal pathogen is often ascribed to opportunistic infections in immuno-suppressed humans and animals. In the present case, a potential cause for immunosuppression was not identified; PCR analysis for cetacean morbillivirus was negative. Herein, we report the first confirmed case of R. arrhizus infection in a free-living Atlantic cetacean. These findings add to the body of knowledge on fungal disease in cetaceans in general and, in particular, in odontocetes, where respiratory involvement is common.
URI: http://hdl.handle.net/10553/42198
ISSN: 0177-5103
DOI: 10.3354/dao03268
Fuente: Diseases Of Aquatic Organisms[ISSN 0177-5103],v. 130 (2), p. 153-158
Colección:Artículos
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