Black hair follicular dysplasia in a Brazilian Terrier: a case report

Tatibana, Lilian Sayuri; Paglioni, Daniella Naves; Val, Adriane Pimenta da Costa

doi:10.4322/rbcv.2014.074

Cited by 1 publication

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“…Trichography of the black hair reveals deformities in the hair shaft including unclear definition between the hair layers (medulla, cortex, and cuticle), an irregular outline of the hair shaft, and bulges of macromelanosomes, indicating excessive accumulation of melanin (Gross et al, 2005). Moreover, trichography findings also lead to the suspicion of BHFD in another report, further confirmed as BHFD by skin histopathological examination (Tatibana et al,2012). Trichography was not performed in our study, once the definitive diagnosis should always be performed through histopathology.…”

Section: Discussionsupporting

confidence: 56%

Black hair follicular dysplasia in a fox paulistinha dog: clinical and histopathological features

Aléssio

Braga

Palumbo

et al. 2020

AVB

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Black hair follicular dysplasia (BHFD) is an unusual canine skin disorder defined as alopecia confined to black regions of the hair coat. First clinical abnormalities are usually noted around four weeks of age and comprise fracture of hair shafts in black-coated regions, later resulting in partial alopecia, usually, on the head, ear pinnae, neck, and back, whereas some nonblack-coated areas may exhibit normal hair. The diagnosis is confirmed by histopathologic features. This article aims to report a case of black hair follicular dysplasia in a seven-month-old Fox Paulistinha male dog showing alopecia restricted to black-haired areas, in which diagnosis was confirmed by histopathological exams that showed follicular dysplasia associated with melanic accumulation in the hair shaft and in and deep dermal tissue.

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Section: Discussionsupporting

confidence: 56%