患儿,女,3月半。40天前其母发现前额部出现数个粟粒至针头大小白色斑点,并逐渐增多扩大,个别融合成片。无阳性家族史。系统检查无异常。皮肤科情况:前额及眉间有数个冒针头至黄豆大白色斑点及斑片,边界清楚,表面有细碎糠秕状鳞屑(图1)。颈、胸、背等处无类似皮损。真菌检查:刮鳞屑作KOH涂片,镜下见大量粗短棒状菌丝及少许成簇的圆形厚壁孢子真菌 Children, women, March and a half. Forty days ago, his mother found several mites on the forehead to the white spots on the needle size, and gradually increased to expand, individual integration into pieces. No positive family history. No abnormal system check. Dermatology: forehead and eyebrows have a few needle to soy white spots and patches of large, clear boundary, the surface of fine chaff-shaped scales (Figure 1). Neck, chest, back and other places without a similar lesion. Fungal examination: scaly scale for KOH smear, see a large number of microscopic rod-shaped mycelium and a small number of clusters of round thick spore fungi