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- W2828285955 abstract "DAO Diseases of Aquatic Organisms Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsSpecials DAO 130:153-158 (2018) - DOI: https://doi.org/10.3354/dao03268 NOTE Pyogranulomatous obliterative laryngotracheitis by Rhizopus arrhizus (syn. R. oryzae) in a free-ranging Atlantic spotted dolphin Stenella frontalis Argiñe Cerezo1, Oscar Quesada-Canales2,*, Eva Sierra2, Josué Díaz-Delgado2,3, Antonio Fernández2, Jamie Henningson1, Manuel Arbelo2 1Department of Diagnostic Medicine and Pathobiology, Kansas State Veterinary Diagnostic Laboratory, 1800 Denison Avenue, Manhattan, KS 66506, USA 2Institute of Animal Health and Food Safety, School of Veterinary Medicine, University of Las Palmas of Gran Canaria, Trasmontana s/n 35413, Arucas, Gran Canaria, Spain 3Laboratory of Wildlife Comparative Pathology, Department of Pathology, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, SP 05508-270, Brazil *Corresponding author: oquesada@fpct.ulpgc.es ABSTRACT: 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 immunosuppressed 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. KEY WORDS: Cetacean pathology · Fungal infection · Marine mammal · Mycosis · Zygomycetes Full text in pdf format PreviousNextCite this article as: Cerezo A, Quesada-Canales O, Sierra E, Díaz-Delgado J, Fernández A, Henningson J, Arbelo M (2018) Pyogranulomatous obliterative laryngotracheitis by Rhizopus arrhizus (syn. R. oryzae) in a free-ranging Atlantic spotted dolphin Stenella frontalis. Dis Aquat Org 130:153-158. https://doi.org/10.3354/dao03268 Export citation RSS - Facebook - Tweet - linkedIn Cited by Published in DAO Vol. 130, No. 2. Online publication date: September 10, 2018 Print ISSN: 0177-5103; Online ISSN: 1616-1580 Copyright © 2018 Inter-Research." @default.
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- W2828285955 title "Pyogranulomatous obliterative laryngotracheitis by Rhizopus arrhizus (syn. R. oryzae) in a free-ranging Atlantic spotted dolphin Stenella frontalis" @default.
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