Twenty-one cases were followed up for 3 months to 4 years, except for 1 case which was polyostotic eosinophilic granuloma was found recurrence in other place after operation in 4 months.

• 随访3个月至4年，1例多发颅骨嗜酸性肉芽肿术后4个月出现新病灶，其余病例未见复发。