Comparative Immunohistochemical Analyses on the Modes of Cell Death/Keratinization in Epidermal Cyst, Trichilemmal Cyst, and Pilomatricoma

Keratinization is a kind of cell death called terminal differentiation and includes various patterns such as epidermal keratinization (EK), trichilemmal keratinization (TK), and shadow cell differentiation (SCD), whereas these have not been comparatively investigated from a standpoint of cell death. In the present study, surgically extirpated specimens of epidermal cyst, trichilemmal cyst, and pilomatricoma (10 cases in each) were subjected to...