Peer-reviewed veterinary case report
Alopecia in a black Labrador retriever associated with focal sub-follicular panniculitis and sebaceous adenitis.
- Journal:
- Veterinary dermatology
- Year:
- 2010
- Authors:
- Varjonen, Katarina et al.
- Affiliation:
- Department of Veterinary Clinical Sciences · United Kingdom
- Species:
- dog
Plain-English summary
A 6-year-old male black Labrador retriever was brought to the vet because he had been losing hair in well-defined patches for 12 weeks, but he wasn't itching. Skin samples taken from the affected areas showed two conditions: sebaceous adenitis (an issue with the oil glands in the skin) and sub-follicular panniculitis (inflammation beneath the hair follicles). The tests revealed significant damage to the hair follicles and a loss of oil glands. Over the next year, some hair grew back in certain areas, but the center of the larger patches remained hairless.
Abstract
A 6-year-old entire male black Labrador retriever was presented with nonpruritic multicentric, well-demarcated alopecia of 12-weeks duration. Skin biopsies from the margins of alopecic regions showed sebaceous adenitis and sub-follicular panniculitis. Biopsies from alopecic areas showed severe follicular atrophy with residual fibrous tracts, loss of sebaceous glands and lymphohistiocytic panniculitis beneath individual atrophic hair follicle groups. These features differed from previous reports of pilosebaceous diseases of dogs and appeared to extend the spectrum of inflammatory patterns in presumed immune-mediated adnexal diseases of this species. During the 12-month follow-up, there was partial hair regrowth without treatment but alopecia was permanent in the centre of larger lesions.
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Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/20374570/