Autonomic Denervative Dermatitis in the Chin Area Following Mandibuloplasty.

Autonomic denervative dermatitis (ADD) is a rare skin condition caused by autonomic nerve injury, often after surgery. It typically presents as erythematous or excoriated lesions in areas with sensory loss. While cases in the lower limbs are documented, facial involvement after mandibuloplasty has not been reported. The authors describe a 27-year-old woman who developed ADD 1 year after angle-body reduction mandibuloplasty. She presented with pruritic, erythematous papules on the chin and sensory deficits. The lesions resolved spontaneously, leaving scarring and contour irregularities. Diagnosis was based on clinical history and exclusion of other conditions such as contact dermatitis and seborrheic dermatitis. Autonomic denervative dermatitis arises from sudomotor dysfunction and immune dysregulation due to autonomic nerve damage. Surgeons should be aware of this potential complication, especially involving the mandibular canal. Early recognition and treatment with emollients, corticosteroids, and antihistamines may prevent permanent sequelae. This case underscores the need for awareness to avoid underdiagnosis.