hyperkeratotic lichenified skin lesion of the gluteal region; senile gluteal dermatosis (sitter's sign)

Etiology

• prolonged sitting

Epidemiology

• elderly, thin, frail, relatively immobile men of Asian descent

Pathology

• psoriasiform epidermal hyperplasia with elongation of the rete ridges

Clinical manifestations

• plaques may become sore & uncomfortable

Management

• pressure-relieving devices
  • donut cushions
  • air or water-filled cushions
• topical glucorticoids not helpfule
• topical urea not helpful
• topic salicylic acid not helpful

More general terms

• skin lesion
• sign/symptom