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

皮肤活检显示丘疹的起处有角不全鸡样板。

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

摘要PK是一群角的疾病，病理下的特徵是可见所谓的角样板。