Introduction
Key features
Cutaneous cysts present as circumscribed dermal or subcutaneous papules or nodules
Cysts may be lined by either stratified squamous epithelium or non-stratified squamous epithelium; cystic structures without an epithelial lining are better classified as pseudocysts
Histologic features of the cyst lining and the anatomic location determine the type of cyst
Treatment of cysts, when indicated, is primarily surgical