Multiple perianal infundibular follicular cysts in a dog.
This case report describes a 7-year-old male cocker spaniel dog with multiple perianal infundibular follicular cysts. Clinically the dog had moderate anal sacculitis, peri-anal pruritus causing it to 'scoot' and lick the area. On examination of the perianal area, there were over 100 firm, well circumscribed papules, ranged from 0.2 to 0.5 cm in diameter with a central pore, and were found in the perianal region. Alopecia was present in the perianal region. The skin tissue in the perianal region resected surgically was submitted for histological examination. Microscopically, the tissue revealed multiple dilated cysts filled with keratins and the papules corresponded to infundibular follicular cysts. The affected dog showed moderate anal sacculitis. Anal sacculitis commonly causes repeated scooting or licking the area around the anus. Therefore, the multiple follicular cysts in the present case appear to be primarily a sequela to chronic external trauma to the perianal area, probably in response to anal sacculitis. To the best of the authors' knowledge, the present report is the first documented case of multiple perianal infundibular follicular cysts in a dog.
College of Veterinary Medicine, Kyungpook National University, Daegu 702-701, South Korea.
Jin-Kyu
JK
Park
Il-Hwa
IH
Hong
Mi-Ran
MR
Ki
Kyung-Sook
KS
Hong
Ae-Ri
AR
Ji
Sun-Hee
SH
Do
Kyu-Shik
KS
Jeong
D000694:Anal Gland Neoplasms / Q000175:diagnosis / Q000473:pathology* / Q000601:surgery; D000695:Anal Sacs / Q000473:pathology; D000818:Animals; D004283:Dog Diseases / Q000175:diagnosis / Q000473:pathology* / Q000601:surgery; D004285:Dogs; D005497:Follicular Cyst / Q000175:diagnosis / Q000473:pathology / Q000601:surgery / Q000662:veterinary*; D008297:Male; D009378:Neoplasms, Multiple Primary / Q000175:diagnosis / Q000473:pathology / Q000601:surgery / Q000662:veterinary*; D010481:Perianal Glands / Q000473:pathology / Q000601:surgery