Idiopathic eruptive macular pigmentation with papillomatosis

Idiopathic eruptive macular pigmentation in a Chinese child

We present a case of a healthy 8-year-old boy who presented with disseminated asymptomatic brown macules on the face, neck, trunk, and proximal extremities for 3 months. Dermatologic examination revealed multiple, smooth, nonscaly, brown macules involving the face, neck, trunk, and proximal limbs. The Darier's sign was negative. Histopathologic study showed normal epidermis and basal membrane, and increasingly scattered melanophages in the papillary dermis. The final diagnosis was idiopathic eruptive macular pigmentation.

Idiopathic eruptive macular pigmentation involving the distal extremities: a case report

Idiopathic eruptive macular pigmentation is a disorder of pigmentation found in children and adolescents. It typically manifests as nonconfluent tan to brown macules involving the neck, trunk, and proximal extremities. We report the case of a 6-year-old girl with an atypical presentation involving the distal extremities. Histopathology confirmed the subtle increase in pigmentation of the basal layer of the epidermis. Treatments are largely ineffective. The condition is generally self-limited over months to years, thus treatment is unnecessary.