Familial Keratotic Papular lesions on the Chin

Follicular Keratosis of the Chin Treated with 1.24R‐Dihydroxyvitamin D3 Ointment

“…To date, 25 occurrences of follicular keratosis of the chin have been reported: Eleven patients were from Brazil (2), six from India (3), six, including our patient, from Japan (1,5,6) and two from Israel (4). The lesions occurred mostly in children and teenagers (2).…”

“…We observed the white‐yellow colored spindle bodies in the patch under the dermoscope. Histopathology is characterized by dilated follicles filled with keratin and the lack of perifollicular inflammatory infiltration (1–6). The spindle bodies under the dermoscope appear to correspond to the dilated, keratin filled follicles.…”

“…Prognosis was excellent with total disappearance of the lesion after the patients stopped their habit of resting their chin or jaw on their hands or knee (2,5,6). Local treatment with keratolytic agents was unsuccessful (4). As it was known that both nevus comedonicus (9) and keratosis follicularis squamosa (10) had been successfully treated with topical vitamin D3 ointment.…”

“…In 1979, Padilha‐Goncalves (2) described 11 patients with papular lesions on the chin and on the jaw, and named this entity ‘‘traumatic anserine folliculosis.’’ He suggested that the lesions were due to localized prolonged pressure and friction on the naked skin. This disease has since been called keratotic papular lesions of the chin (3,4) or follicular keratosis of the chin (5,6). We examined one child with follicular keratosis of the chin, which we treated with 0.0002% 1.24R‐dihydroxyvitamin D3(vitamin D3) ointment.…”

Keratotic Papules of Chin: A Case Series

“…5 Brenner and Ilie described two brothers with Keratotic Papular lesions on the chin indicating their occurrence in boys and familial nature. 6 whereas there is no familial history in our case series. Majority of the cases which previously reported were young females; however, in our case series along with three young females, a male of 21-year-old presented with Keratotic papules.…”