Acquired Progressive Kinking of the Hair in a Japanese Girl

Acquired Progressive Kinking of the Hair

“…Since its first description by Wise and Sulzberger in 1932 (1), only 25 cases have been reported in the English‐language literature (Table 1), of which 6 cases (25%) were in females. The mean age of onset was 17.6 years for males and 12.0 years for females (2). The earliest reported onset was at 8 years in a girl (3) and the latest onset was at 23 years in a man (4).…”

“…More than 6 months after her last evaluation by us, the parents reported that our patient's condition had rapidly progressed to involve 60% of her scalp hair and that the hair had become curlier and unmanageable. Some patients, especially males, can have progression to hair thinning and androgenetic alopecia (11), some have no progression (2), and some have a complete return to normal hair (3,12). Female or prepubertal patients and those with non‐androgen‐dependent areas of scalp involvement tend to have a better prognosis (3,11,12).…”

Acquired progressive kinking of the hair in a Korean female adolescent

“…1 Most of the reported cases of APKH occur in Caucasian males, and only one Asian case has been reported. 2 The onset of APKH coincides with puberty, and symmetrical curliness of the hair develops. It is characterized by ill-defined patches of curly hairs on the fron-tal, temporal or vertex regions of the scalp.…”