[Pressure-induced pseudoangioma of obese women]

Due to the pressure by the straps of brassieres, lichen sclerosus-like lesions have been observed on the shoulders of obese women with hyperplastic mammae. Histologically the lesions are characterized by hyperkeratosis, acanthosis and pseudoangionatous proliferation of the capillaries in the dermis. Elastic fibers are sparse, but there is no marked edema and only a moderate perivascular infiltrate of mononuclear cells.