15 citations
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October 1996 in “Archives of Dermatology” This review of alopecia areata cases at Virgen Macarena University Hospital identified a new hair regrowth pattern they term "androgenetic alopecia type" and described a unique inverse form called "sisaipho type" in three cases.
1 citations
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August 2022 in “JAAD case reports” This article discusses the patterns and variants of alopecia areata, including the rare sisaipho, but reports no new research findings.
1 citations
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March 2000 in “PubMed” This case report describes a 16-year-old boy who developed male androgenetic alopecia with a sisaipho pattern, possibly representing a rare, wave-like evolution of alopecia areata.
August 2024 in “Skin Appendage Disorders” This study introduces "alopecia areata in a male or female pattern distribution" as a new clinical subtype of alopecia areata, observed in three adult cases, to enhance diagnostic precision and treatment personalization.
7 citations
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August 2013 in “Journal of the European Academy of Dermatology and Venereology” This study reported that atypical variants of alopecia areata made up less than 25% of all cases in their specialized trichology unit, suggesting a potential selection bias.