著者报告一例发生于颞骨的嗜伊红细胞肉芽肿。患者2岁、男性。主述三个月来左耳流脓,二个月来耳后肿胀。局部检查可见由左外耳道后壁生长一肿物将耳道堵塞,鼓膜不可窥见,脓多量,左耳廓明显耸立,无面瘫。X线片可见左侧颞骨鳞部有广泛的、境界清楚的骨缺损区。全麻下耳后切口,切开骨膜即可见黄褐色易出血之肿物,质软,有被膜,与健康组织间界限清楚,颞骨广泛侵犯,其后半部均为肿瘤占据,听骨部分残存,面神经已无骨管,将颞骨自上方大范围凿开,露出健康脑膜后将与脑膜粘连之肿瘤剥离,并尽量刮除之,半规管及前庭皆被肿瘤侵犯,大 The authors reported one case of eosinophilic granuloma in the sacrum. The patient is 2 years old and male. During the three-month period of the subject’s statement, the left ear was pused and swollen after two months. Local examination showed that the growth of a tumor in the posterior wall of the left external auditory canal obstructed the ear canal. The tympanic membrane could not be seen. There was a large amount of pus, and the left ear was prominently raised without facial paralysis. The X-ray showed a wide range of bone defects in the left iliac crest. After anesthesia with general anesthesia, incision of the periosteum can be seen with yellowish-brown bleeding mass, soft and covered, with clear boundaries between healthy tissue and extensive patella invasion. The latter half is occupied by the tumor and the ossicle remains partially. The facial nerve has no bones, and the sacrum is cut open from the top of the sacrum. After exposing the healthy meninges, the tumors that connect with the meninges are detached, and they are scraped as much as possible. The semicircular canal and the vestibule are all invaded by the tumor.