石膏样毛癣菌(下简称石毛)引起多片脓癣和泛发性体癣尚属少见,现将我室所见一例报告如下:孟×,男,12岁,小学生,家住农村;因右上臂脓痂一月和全身泛发损害12天,于81年9月12日来我科就诊。一月前右上臂前外侧出现一绿豆大炎症显著的丘疹,数日内损害增多, Gypsum-like Trichophyton rubrum (hereinafter referred to as stone hair) caused by multiple forms of psoriasis and generalized ringworm is still rare, now I see a room as follows: Meng ×, male, 12 years old, primary school students, living in rural areas; Arm pus scab in January and generalized damage 12 days, September 81, 81 to our department. One month ago, there was a prominent papuloma in the anteromedial part of the right upper arm with an increase of damage within a few days,