患者,男,4岁,机修工,1987年5月8日入院,2周前工作时碎铁片飞入左鼻前庭皮下,清创时未取出,次日又于另医院手术未获.患者常感头昏、失眠、多梦、食欲递减.查体:全身状况无异常,鼻前庭左下缘见1.5×2.5cm不规则瘢痕,触诊有绿豆大硬结区压痛,周围无充血.同年5月10日局麻下切开皮肤及皮下 Patient, male, 4 years old, mechanic, admitted to hospital on May 8, 1987. Fragmented iron flakes flew into the left nasal vestibule during work two weeks ago and were not removed during debridement. The patient was not surgically treated in another hospital the next day Common sense of dizziness, insomnia, dreams, loss of appetite. Physical examination: no abnormalities in the general condition, the left lower extremity of the nasal vestibule see 1.5 × 2.5cm irregular scars, palpation with mung bean scalp tenderness, no congestion around. On the 10th under local anesthesia cut the skin and subcutaneous