Two independent cases of spontaneously occurring branchioblastomas in koi carp (Cyprinus carpio).
This report documents 2 cases of branchioblastomas in koi carp (Cyprinus carpio). Macroscopically, both cases were characterized by well-demarcated, pale red nodular masses located at the left first branchial arch and the right pseudobranch, respectively. Histologically, the neoplasias were composed of blast-like cells that differentiated into cartilage and branchial lamellae embedded in abundant fibrous connective tissue. Based on these findings, a branchioblastoma was diagnosed.
Knüsel
R
R
Centre for Fish and Wildlife Health, Institute of Animal Pathology, Bern, Switzerland.
Brandes
K
K
Lechleiter
S
S
Schmidt-Posthaus
H
H
D000818:Animals; D002347:Carps; D017809:Fatal Outcome; D005393:Fish Diseases / Q000473:pathology*; D005880:Gills / Q000473:pathology*; D006651:Histocytochemistry / Q000662:veterinary; D008297:Male; D009369:Neoplasms / Q000473:pathology / Q000662:veterinary*