Pattern Alopecia in a Miniature Pinscher Dog

    Jongil Kang, Wanghui Lee, Jeong‐Ho Park, Tae-Ho Oh, Seongwhan Cho, Seongjun Park
    From the encyclopedia
    Estradiol →

    an estrogen promoting hair regrowth more commonly used in women

    Hydrocortisone →

    a synthetic cortisol used for anti-inflammatory effects

    Melatonin →

    hormone commonly taken for sleep aid has some topical benefits for hair

    Image
    Studysummary In this study, a dog with canine pattern alopecia showed improved multifocal alopecia and general hair regrowth after 3 months of melatonin treatment. Our plain-language summary of this paper — not a Tressless recommendation.
    In 2011, a 4-year-old castrated male Miniature Pinscher dog weighing 5.6 kg was examined for diffuse symmetric alopecia on the chest and excessive scaling. The dog presented with alopecia on the neck and thighs, and severe scales, with dermatologic tests indicating bacterial infections. Histopathological analysis showed atrophy of the hair bulb in the affected areas. An ACTH stimulation test revealed abnormally high pre- and post-ACTH serum testosterone levels, but normal estradiol and cortisol levels. Based on the clinical history, physical examination, hormonal assays, and dermatohistopathologic findings, the dog was diagnosed with canine pattern alopecia. Treatment with melatonin for 3 months resulted in improved alopecia on the trunk and general hair regrowth.
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