A Case of Interface Perianal Dermatitis in a Dog: Is This an Unusual Manifestation of Lupus Erythematosus?

September 2006 in “ Veterinary pathology ”

Ingo Gerhauser, A. Strothmann-Lüerssen, Wolfgang Baumgärtner

Discoid Lupus Erythematosus DLE interface dermatitis IgG deposition corticosteroids lupus steroids

TLDR A dog with unusual skin lesions near its tail was successfully treated for a rare form of lupus.

In a 2006 case report, a 4-year-old male Bavarian Mountain Scenthound presented with chronic, erosive lesions in the perianal area, a location not commonly associated with Discoid Lupus Erythematosus (DLE). Despite the absence of the more typical facial involvement, the dog was diagnosed with DLE based on histologic and immunohistologic findings, such as interface dermatitis and linear IgG deposition. Treatment with corticosteroids resulted in complete healing of the lesions. This case highlighted that DLE can manifest in atypical locations like the perianal region and that corticosteroid therapy can be effective in such cases.

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