DAO 134:57-64 (2019) - DOI: https://doi.org/10.3354/dao03358
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Epidemic nodular facial myxomatous dermatitis in juvenile Cranwell’s horned frogs Ceratophrys cranwelli
Kenichi Tamukai1, Junichi Sugiyama2, Yuta Nagata2, Omatsu Tsutomu3, Yukie Katayama3, Tetsuya Mizutani3, Masanobu Kimura4, Yumi Une5,*
ABSTRACT: 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.
KEY WORDS: Myxomatous · Facial lesions · Pacman frog · Ceratophryidae · Morphological
| Full text in pdf format | Cite this article as: Tamukai K, Sugiyama J, Nagata Y, Tsutomu O and others (2019) Epidemic nodular facial myxomatous dermatitis in juvenile Cranwell’s horned frogs Ceratophrys cranwelli. Dis Aquat Org 134:57-64. https://doi.org/10.3354/dao03358
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