Skip to main content

Research Repository

Advanced Search

Vetreccr R1 Text Final AL 27May21

Loeffler, Anette; Boone, Johann; Boone, Johann; Fountain, Kay; Williams, Jonathan; Lloyd, David H.; Killick, Rowena; Rodriguez Barbón, Alberto; Stidworthy, Mark F.; Loeffler, Anette


Anette Loeffler

Johann Boone

Johann Boone

Kay Fountain

Jonathan Williams

David H. Lloyd

Rowena Killick

Alberto Rodriguez Barbón

Mark F. Stidworthy

Anette Loeffler


Pinnae are vital structures for echolocation and survival in many species of bats. Pinnal lesions have been described as common in captive bats, but information on specific diseases affecting the pinnae is scarce. A collection of histological sections of lesional pinnae from 10 bats, archived by bat conservation centers worldwide, was examined to identify potential aetiologies of disease. No neoplastic changes were seen but all pinnae showed inflammation, most commonly intraepidermal pustular dermatitis, deep perivascular dermatitis, nodular and/or diffuse dermatitis, and panniculitis. All bats with deep inflammation had concurrent pinnal perichondritis and cartilage necrosis. Microbial overgrowth was frequent, and pyoderma was confirmed in two bats based on histopathological and culture findings. Keratinocytes with features characteristic of koilocytes were noted in five bats, however immunohistochemistry would be required to confirm viral infection. Although no single aetiological agent was identified, deep inflammation was common and severe highlighting the potential detriment to affected bats and the need for future study of these delicate structures.


Loeffler, A., Boone, J., Boone, J., Fountain, K., Williams, J., Lloyd, D. H., …Loeffler, A. (in press). Vetreccr R1 Text Final AL 27May21. Veterinary Record,

Journal Article Type Article
Acceptance Date Jun 24, 2021
Deposit Date May 27, 2021
Journal Veterinary Record Case Reports
Print ISSN 0042-4900
Publisher BMJ Publishing Group
Peer Reviewed Peer Reviewed
Public URL