Dermatosis Papulosa Nigra in a Young Child

Abstract

Dermatosis papulosa nigra was diagnosed in a 3-year-old black boy. This follicular nevoid condition, which is common in adult blacks, is seldom diagnosed in prepubescent children. The diagnosis was confirmed by the biopsy specimen that showed features of epidermal acanthosis and papillomatosis, similar to seborrheic keratosis.

Dermatosis Papulosa Nigra Treatment with Fractional Photothermolysis

“…It is almost always seen in the black population 1,2 . Prevalence of DPN in the black population has been reported to be between 10% and 35%, with many patients noting a family history of the lesions and the number of lesions increasing with age 3–6 . Histologically, DPN is the same as seborrheic keratosis (acanthotic type) 7…”

Facial Hyperpigmentation in Skin of Color: Special Considerations and Treatment

“…They are considered to represent a variant of seborrheic keratosis but tend to present at a comparatively younger age. It can uncommonly be found in children [68,69].…”

First case of dermatosis papulosa nigra in a white child

“…It is commonly reported after puberty, with a peak in the sixth decade. Common sites of predilection are usually the forehead, cheeks (along the malar regions), neck and upper trunk, and the lesions usually have a diameter of 1–5 mm …”

“…It is more common in darker‐skinned people with a genetic predisposition, as there is a positive family history in approximately 50% of affected individuals. There is a male : female ratio of approximately 1 : 2 …”