Sitter's Sign

Hyperkeratotic lichenified skin lesion of the gluteal region is a cumbersome name that describes the condition very well.

Elderly men often develop rough skin near the gluteal fold associated with immobility. This disorder is called senile gluteal dermatosis (SGD) or hyperkeratotic lichenified skin lesion of the gluteal region. (The latter name, although more cumbersome, describes the disorder well.) Poorly defined brown to grey plaques develop slowly on the gluteal cleft and, often, also on the adjacent buttocks. These may be asymptomatic or tender when sitting, but sometimes they itch instead. Researchers in Taiwan set out to study the incidence and predisposing and provoking factors of this disorder.

They examined 162 consecutive outpatients with skin lesions of the buttocks. SGC patients had brownish scaly plaques on the gluteal cleft and each side of the b…

Reviewing Author

Mark V. Dahl, MD

Disclosures

Consultant / Advisory board Ulthera, Inc.; AuBio LifeSciences, LLC; Paris Therapeutics

Equity Elorac, Inc.; Makucell, Inc.; Paris Therapeutics

Editorial boards UpToDate

Leadership positions in professional societiesNational Rosacea Society (Chairman, Medical Board)