pruritic

Prurigo nodularis （PN） is a chronic pruritic dermatosis of unknown etiology, characterized by firm, symmetrically localized hyperkeratotic pruritic papules and nodules.

结节性一病因未明的慢性瘙性发性皮肤病。其特点突出于皮面的化过度的丘、结节，烈瘙，呈对称性分布。

We recently encountered three old men with pruritic porokeratosis .We propose the term “eruptive pruritic papular porokeratosis” for describing this unusual variant of porokeratosis.

笔者近期诊断三例这样的病患并推荐使用“发性瘙性丘型化症”来命名这一特殊类型的孔化症。