Successful treatment of nevus comedonicus with ultrapulse CO2 laser.

be associated with porokeratosis,[8] this diagnosis was not considered owing to the lack of typical clinical features and histology of this condition. Authentic clinical and histologic features of Nekam’s disease are, respectively,[9] a facial seborrheic dermatitislike eruption with tiny confluent papules on the trunk and extremities in linear and reticulate arrays and an infundibulocentric and acrosyringocentric lichenoid interface dermatitis with numerous necrotic keratocytes covered by parakeratosis housing neutrophils in staggered fashion. The history of the present case suggests that the patient might have had porokeratosis since his childhood and he probably became symptomatic as he developed lichen planus on and around the porokeratotic plaques.