Patchy alopecia areata sparing gray hairs: a case series
نویسندگان
چکیده
Alopecia areata is an unpredictable, non-scarring hair loss condition. Patchy alopecia areata sparing gray hairs is rare. Here we present 4 cases with patchy non-scarring hair loss, which attacked pigmented hairs only and spared gray hairs. It should be differentiated from vitiligo, colocalization of vitiligo and alopecia areata, and depigmented hair regrowth after alopecia areata.
منابع مشابه
Pistas dermatoscópicas para diferenciar a tricotilomania da alopecia areata em placa
BACKGROUND: Trichotillomania and patchy alopecia areata have similar clinical and dermoscopic features. OBSERVATIONS: In trichotillomania, dermoscopy shows decreased hair density, short vellus hair, broken hairs with different shaft lengths, coiled hairs, short vellus hair, trichoptilosis, sparse yellow dots, which may or may not contain black dots and no exclamation mark hairs. CONCLUSIONS: In...
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Background. Diagnosis of patchy hair loss in pediatric patients is often a matter of considerable debate among dermatologists. Trichoscopy is a rapid and noninvasive tool to detect more details of patchy hair loss. Like clinical dermatology, trichoscopy works parallel to the skin surface and perpendicular to the histological plane; like the histopathology, it thus allows the viewing of structur...
متن کاملThomas More Syndrome
1916), believed that whitening of hair was related to pigment absorbed and carried away by phagocytes he observed in the vicinity of dystrophic hair follicles and called ‘pigmentophages’ [9] . In 1981, Guin et al. [10] reported a lady whose hair turned white over 3 months with hair thinning but no patches of alopecia. Immunofluorescence studies demonstrated immune deposits along the follicular ...
متن کاملThomas More Syndrome
1916), believed that whitening of hair was related to pigment absorbed and carried away by phagocytes he observed in the vicinity of dystrophic hair follicles and called ‘pigmentophages’ [9] . In 1981, Guin et al. [10] reported a lady whose hair turned white over 3 months with hair thinning but no patches of alopecia. Immunofluorescence studies demonstrated immune deposits along the follicular ...
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