Daniel Schissel

All articles by Daniel Schissel

Acne keloidalis, Acne Keloidalis Nuchae (AKN), Keloid Folliculitis, Folliculitis Keloidalis Nuchae, Nuchal Keloid A, Dermatitis Papillaris Capillitii)

Are You Confident of the Diagnosis? What you should be alert for in the history Characteristic findings on physical examination include follicular-based papular (Figure 1) or pustular presentation with ingrown hairs and hypertrophic or keloidal scarring on the nape of the neck (Figure 2). Papules or pustules may form confluent plaques with draining sinus tracks.…

Pseudofolliculitis Barbae (pili incarnati, shaving bumps)

Are You Confident of the Diagnosis? Depending on the patient’s predisposition for pseudofolliculitis barbae (PFB), various hair removal processes may produce short, sharp, and pointed hairs that penetrate the skin either in an extra- or transfollicular manner. The ingrowing hairs initiate a foreign body reaction, producing erythematous papules and pustules (“pseudofolliculitis”) that may heal with…

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