hyperkeratotic

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

结节性痒疹为一病因未明慢性瘙痒性发疹性肤病。其特点为突出化过度丘疹、结节，剧烈瘙痒，呈对称性分布。