颌骨多房肿瘤性病变的CT诊断

目的对照研究颌骨多房性病变CT与病理表现,提高颌骨多房性病变CT诊断水平。方法回顾分析我院13例经手术病理证实的颌骨多房性病变的CT表现,其中9例行CT2期增强扫描,分析对照颌骨多房性病变CT与病理表现。结果 （1）病变的分型：多房囊实型9例,主要为成釉细胞瘤（5例）;多房囊型4例。（2）房壁及房隔：囊实性造釉细胞瘤、牙源粘液瘤、角化囊性瘤合并感染及尖周脓肿时各房大小不一、房隔不完整、房壁厚薄不均。（3）生长形态：可呈皂泡状、蜂窝状、椭圆形及不规则形生长。（4）颌骨破坏特点：造釉细胞瘤及角化囊性瘤的骨质破坏明显,常突破皮质侵犯软组织。（5）邻近牙根改变：表现为锯齿状吸收和牙根移位。（6）增强表现：5例囊实性造釉细胞瘤囊壁、分隔、乳头状突起及壁结节均明显强化。（7）诊断：术前8例诊断正确,5例误诊,误诊率为38.4%。结论颌骨多房肿瘤性病变种类较多,误诊率高,注意发现具有鉴别诊断价值的CT表现特点,密切结合临床可以明显提高术前的确诊率。

CT Diagnosis of Multi-room Lesions of Jaws

Objective Control CT and pathology of the multi-room lesions of jaws to improve CT diagnosis of jaw lesions.Methods We retrospectively analyz the CT of 13 patients who have been multi-room lesions of jaws.THe 9 of them accept CT 2 phase scan.Results(1) lesion type:Multi-Room lesions of solid and cystic are 9 cases,which mainly is ameloblastoma(5 cases);multilocular lesion of cystic are 4 cases.(2) Wall and separation:ameloblastoma of solid and cystic,dental source of myxoma,infection and keratinized cystic ...