pruritic

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

结节痒疹为一因未明的慢瘙痒发疹。其特点为突出于面的角化过度的丘疹、结节，烈瘙痒，呈对称分布。

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推荐使用“发疹瘙痒丘疹型汗管角化症”来命名这一特殊类型的汗孔角化症。