Dissecting Cellulitis of the Scalp with Excellent Response to Isotretinoin.

An 18-year-old man presented for evaluation of a 1-year history of painful nodules on the scalp with associated hair loss. Physical examination revealed multiple confluent, fluctuant, boggy nodules on the scalp with overlying alopecic patches. Based on these findings, a diagnosis of dissecting cellulitis of the scalp was made and the patient was successfully treated with oral isotretinoin therapy.