Herpesvirus-associated papillomas in koi carp (Cyprinus carpio)

Citation
Pp. Calle et al., Herpesvirus-associated papillomas in koi carp (Cyprinus carpio), J ZOO WILD, 30(1), 1999, pp. 165-169
Citations number
12
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Veterinary Medicine/Animal Health
Journal title
JOURNAL OF ZOO AND WILDLIFE MEDICINE
ISSN journal
1042-7260 → ACNP
Volume
30
Issue
1
Year of publication
1999
Pages
165 - 169
Database
ISI
SICI code
1042-7260(199903)30:1<165:HPIKC(>2.0.ZU;2-N
Abstract
From January through November 1994, 32% (7/22) of koi carp (Cyprinus carpio ) maintained in indoor aquariums developed proliferative cutaneous lesions that consisted of single to multiple 2-10-mm whitish to pink fleshy masses usually associated with fin rays. Although scaleless koi were more commonly affected (3/6) than were normally scaled koi (4/16), the difference in inc idence rates was not significant (chi(2) text, P > 0.05). Lesions typically resolved spontaneously in 1-3 wk, occasionally persisted for >3 mo, and re curred in several fish after 2-5 mo. Fish were otherwise asymptomatic. Wet mount preparations from lesions were densely cellular and consisted of hype rplastic epidermal cells of normal morphology without parasites or inflamma tory cells. Histologically, biopsies were consistent with papillomas and we re characterized by a marked benign epidermal hyperplasia without inclusion bodies or inflammatory infiltrate. Transmission electron microscopic exami nation revealed intranuclear and intracytoplasmic herpesvirus virions. Viru s isolation attempts were unsuccessful.