Compound Nevus Occurring Near External Auditory Canal: Successful Treatment by CO2 Laser Abrasion
A 47-year-old Korean man presented with a 1-year history of a well-demarcated 1×1 cm, dark-brown to black papillomatous plaque in his right cavum conchae (). He didn't complain of any pain, itching, intermittent oozing, or hearing disturbance. On otoscopic examination, his right tympanic membrane and external auditory canal were normal. He was healthy and had no history of skin cancer or other skin problem. A skin biopsy specimen showed numerous nests and clumps of melanocytic nevus cells in the upper dermis and dermoepidermal junction (). The lesion was treated with CO2 laser (Model 1020C 20WA, Sharplan Lasers Inc., Migdal Haemek, Israel) abrasion at 1.0 watt in the super-pulsed mode. Only topical antibiotic ointment without coverage was applied for post-laser wound care for 1 week. The patient showed no recurrence during the 6-month follow-up period ().