Clear Cell Acanthoma
Image and content excerpted from the VisualDx clinical decision support system.
VisualDx images show variation in age, skin color, and disease stage. VisualDx has 16 images of Clear Cell Acanthoma.
Full text and additional images for Clear Cell Acanthoma are available in the following VisualDx packages:
216.7 – Benign neoplasm of skin of lower limb including hip
D23.70 – Other benign neoplasm of skin of unspecified lower limb, including hip
SynopsisClear cell acanthoma, also known as pale cell acanthoma or Degos' acanthoma, is a benign epidermal tumor presenting as an erythematous papule or nodule with peripheral wafer-like scale, usually found on the leg.
Pathogenesis is unknown, but some have proposed that it is a variant of a seborrheic keratosis, while others favor a reactive inflammatory dermatosis.
Clear cell acanthoma occurs equally in both sexes and has a peak incidence in the 50- to 70-year age range.
Lesions may bleed with trauma.
Lesions tend to develop over the course of several years.