title: Histopathology of scarring and nonscarring hair loss.
abstract: This article reviews the histologic findings of alopecia, preceded by a brief discussion of biopsy and processing techniques, the normal follicular anatomy and cycle, and expected findings in transverse sections. Subtle histologic abnormalities will be missed unless the normal follicular anatomy and follicular cycle, when viewed in transverse sections, are understood.
authors.affiliation: Department of Pathology, Walter Reed National Military Medical Center, 8901 Wisconsin Avenue, Bethesda, MD 20889, USA. john.childs2@med.navy.mil
authors.forename: John M
authors.initials: JM
authors.lastname: Childs
authors.forename: Leonard C
authors.initials: LC
authors.lastname: Sperling
mesh_terms: D000505:Alopecia / Q000473:pathology*; D001706:Biopsy / Q000379:methods; D002921:Cicatrix / Q000473:pathology*; D003937:Diagnosis, Differential; D006201:Hair Diseases / Q000473:pathology; D018859:Hair Follicle / Q000033:anatomy & histology / Q000254:growth & development*; D006801:Humans; D008867:Microtomy / Q000379:methods; D015203:Reproducibility of Results; D012535:Scalp / Q000033:anatomy & histology / Q000254:growth & development*