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本组13副颞骨取自10例经过头颈部放疗患者。从放疗到死亡时间为5月至21年,大多数为二年或不足二年。骨改变为S c huknec kt所描述的放射性骨炎和空泡变性,骨吸收,骨髓缺失以及纤维组织形成。13副颞骨标本中5例发现骨坏死,其中4例为弥漫性且累及鼓环,1例有纤维化和骨吸收的斑块区,2例有听骨吸收。外耳道软组织的病理表现为:(1)上皮增生4例,其中3例有鼓膜及外耳道前后壁的上皮增厚,另一例仅鼓膜上皮增厚。(2)2例示耵聍腺萎缩和毛囊缺失。
The group of 13 patellas was taken from 10 patients undergoing head and neck radiotherapy. The time from radiotherapy to death is May to 21, most of them are two years or less. Bone changes were described by S c huknec kt as radio-osteitis and vacuolar degeneration, bone resorption, bone marrow loss, and fibrous tissue formation. Osteonecrosis was found in 5 of the 13 tibial specimens, of which 4 were diffuse and involving the drum ring, 1 had plaque areas with fibrosis and bone resorption, and 2 had ossicular absorption. The pathological manifestations of the soft tissue of the external auditory canal were: (1) 4 cases of epithelial hyperplasia, of which 3 cases had epithelial thickening of the tympanic membrane and the anterior and posterior walls of the external auditory canal, and the other case only had tympanic epithelium thickening. (2) 2 cases of parotid atrophy and hair follicle loss.