Epidemic nodular facial myxomatous dermatitis in juvenile Cranwell's horned frogs Ceratophrys cranwelli

In 2017, approximately 40 out of 100 captive Cranwell's horned frogs Ceratophrys cranwelli from several facilities in Japan exhibited protruding facial lesions. Histopathological examination was performed on 6 specimens with such lesions randomly selected from 2 facilities. Lesions consisted of...

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Bibliographic Details
Published inDiseases of aquatic organisms Vol. 134; no. 1; pp. 57 - 64
Main Authors Tamukai, Kenichi, Sugiyama, Junichi, Nagata, Yuta, Tsutomu, Omatsu, Katayama, Yukie, Mizutani, Tetsuya, Kimura, Masanobu, Une, Yumi
Format Journal Article
LanguageEnglish
Published Germany 25.04.2019
Subjects
Ceratophryidae
Facial lesions
Pacman frog
Morphological
Myxomatous
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Summary:In 2017, approximately 40 out of 100 captive Cranwell's horned frogs Ceratophrys cranwelli from several facilities in Japan exhibited protruding facial lesions. Histopathological examination was performed on 6 specimens with such lesions randomly selected from 2 facilities. Lesions consisted of scattered stellate to spindle-shaped cells without atypia in an abundant myxoid matrix and occasional lymphocytic infiltrates. Maxillary bone was resorbed. No etiological organisms were detected using light microscopy or metagenomic analysis of the lesions. Macroscopic and histological assessments indicate that the lesions are associated with nodular facial myxomatous dermatitis, which has never been reported in amphibians.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:0177-5103
DOI:10.3354/dao03358