Pilomatrixomas

《英文msh詞典》Pilomatrixomas
[入口詞] Pilomatrixomas
[主題詞] Pilomatrixoma
[英文釋義] A tumor composed of cells resembling those of the hair matrix,which undergo 'mummification' and may calcify. It is a relatively uncommon tumor,which may occur at any age from infancy. The majority of patients are under 20,and females are affected more than males. The lesion is usually a solitary deep dermal or subcutaneous tumor 3-30 mm in diameter,situated in the head,neck,or upper extremity. (From Rook et al.,Textbook of Dermatology,4th ed,p2401)