患儿男,6岁,体重15kg,因头部起丘疹、瘙痒,在当地治疗无好转,化脓疼痛1月余、加重5天就诊。皮科检查:头顶部偏右颞部有一13cm×12cm红肿痈状椭圆形隆起,界清,质软,轻度压痛,挤压时由毛囊口溢出黄白色脓液。表面有块状脓痂,易剥离,剥离后露出鲜红、湿润、蜂窝状基底面。头发稀少有断发,易拔除,枕后及耳后淋巴结肿大,压痛。查WBC计数19.6×10~9/L,分类:N0.81,L0.19。病发真菌镜检见发外孢子,培养为石膏样 Children, 6 years old, weighing 15kg, due to head pimples, itching, no improvement in the local treatment, suppurative pain for more than a month, aggravating 5 days treatment. Pico check: the top of the right temporal part of a 13cm × 12cm red and swollen 痈-shaped oval bulge, clear, soft, mild tenderness, squeezing hair follicles overflow yellow-white pus. Abundant surface of the pustular scab, easy to peel off, exposing bright red, moist, honeycomb base surface. Sparse hair cut, easy to remove, pillow and ear lymph nodes, tenderness. Check WBC count 19.6 × 10 ~ 9 / L, classification: N0.81, L0.19. Fungal hair microscopy see hair spores, cultured as gypsum-like