Short anagen syndrome: Case series and literature review.

Abstract

Short anagen syndrome is a hair cycle disorder usually diagnosed in early childhood and characterized by short hair length due to short duration of the anagen phase. The objective was to review the presentation and demographic characteristics of short anagen syndrome and compare them with the most common differential diagnosis, loose anagen syndrome. A retrospective review of eight children with short anagen syndrome was performed at the University of Miami Outpatient Dermatology Clinic. The diagnosis of short anagen syndrome was confirmed according to clinical findings and characteristic short telogen hairs with pointed tips on the hair pull test. This is the largest reported clinical series of short anagen syndrome thus far in the literature.