Abstract
A 68-year-old White man presented with a 2-year history of asymptomatic, widespread comedones associated with patchy alopecia of the scalp and eyebrows and total alopecia of axillary and pubic hairs (Fig 1, A to C). Histopathology of a comedonal area demonstrated a dilated, follicular infundibulum with keratotic plugging and a perifollicular band-like CD4-predominant atypical T-lymphocytic infiltrate leading to the detachment and infiltration of the follicles (Fig 1, D and E). Subsequently, erythematous, erosive plaques started to develop on the trunk and limbs of the patient (Fig 1, F), the histopathology of which showed a more extensive, diffused, epidermotropic infiltrate containing CD4-predominant T lymphocytes with sparse medium- to large-sized lymphocytes (Fig 1, G).
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