Skin biopsy revealed that papule contained cornoid lamellae on the top of the raised border.

皮检显示丘疹边缘隆起处有角化不全鸡样板。

Porokeratosis (PK) is a clonal disorder of keratinization that is histologically characterized by the presence of a cornoid lamella.

摘要PK是一群角化异常疾病，病理下是可见所谓角样板。