患者,女性,4岁。因左手中指显著粗长而就诊。其母诉述患儿出生后即发现左手中指比较粗长,随年龄增长。家族中无同样病史。1 体检面部及颈下部广泛散在0.2cm至0.7cm边缘清楚之棕色斑及针尖至火柴头大小结节,颅顶后部可扪及两个黄豆粒大小皮下结节。左侧面部4cm×1.5cm不规则片状皮肤色素减退白斑,左颌下及左 Patient, female, 4 years old. Sees a doctor because the left middle finger is significantly longer. Her mother complained that after she was born, the left middle finger was found to be relatively long and grew with age. There is no history of the same family. 1 physical examination of the face and neck below the widely scattered in the 0.2cm to 0.7cm edge of the brown spots and the needle to the match head size nodules, the skull can be followed by two subcutaneous nodules size and size of soybean. Left face 4cm x 1.5cm Irregular flaky skin pigment hypopigmentation, left submandibular and left