New Histopathologic Findings in Scarring Alopecias: The Role of Adipose Tissue and Eccrine Sweat Coils in Frontal Fibrosing Alopecia, Fibrosing Alopecia in a Pattern Distribution, and Lichen Planopilaris

* Context.--Clinical, dermoscopic, and histologic diagnostic criteria may overlap in cases with scarring and nonscarring alopecia, making diagnosis difficult for clinicians and pathologists. New histopathologic discoveries indicate that the cutaneous adnexal structural and homeostatic unit made up o...

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