| Disorder with characteristics of reduced pilosity over the scalp and body (with sparse, thin, and short hair) in the absence of other anomalies. Prevalence is unknown but numerous large pedigrees with several affected members have been described. Both men and women are equally affected. Hair loss is diffuse and progressive and usually begins during early childhood. Body hair may also be sparse with variable involvement of the eyebrows, eyelashes, and pubic and axillary hair. There are no anomalies of the skin, nails or teeth. A scalp-limited form has also been reported with mutations in the corneodesmosin (CDSN) gene. Both autosomal dominant and recessive modes of transmission have been reported for this disorder. |
