Peer-reviewed veterinary case report
Multiple perianal infundibular follicular cysts in a dog.
- Journal:
- Veterinary dermatology
- Year:
- 2010
- Authors:
- Park, Jin-Kyu et al.
- Affiliation:
- College of Veterinary Medicine · South Korea
- Species:
- dog
Plain-English summary
This case involves a 7-year-old male cocker spaniel that developed multiple cysts around its rear end, specifically in the perianal area. The dog was experiencing moderate inflammation of the anal sacs, which likely caused it to scoot and lick the area frequently. Upon examination, the vet found over 100 small, firm bumps, some with a central opening, and there was also hair loss in that area. A sample of the affected skin was taken for testing, which showed that the bumps were filled with a substance called keratin and were identified as infundibular follicular cysts. The cysts appeared to be a result of ongoing irritation from the anal sac inflammation. Overall, this case is unique as it is the first reported instance of these specific cysts in a dog.
Abstract
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.
Find similar cases for your pet
PetCaseFinder finds other peer-reviewed reports of pets with the same symptoms, plus a plain-English summary of what was tried across them.
Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/20136788/