陈燕 梁东台 扈文海 胡彤宇 石奉文 050051 石家庄，河北医科大学第三医院骨病科 中华骨科杂志 1999 0 19 3


    关键词：牙源性肿瘤；骨骺；显微镜检查；电子 期刊 zhgkzz 0 临床研究 fur -->


    

【摘要】目的 分析颌外牙骨质样瘤的临床、X线表现及病理特点。方法 10例颌外牙骨质样瘤患者，包括我院诊治的3例及国外文献7例，均经手术和病理证实。结果 大多发生于男性、儿童或青少年的骨干骺端或近干骺端，位于股骨近端5例，胫骨近端1例，胫骨远端2例，肱骨近端1例及掌骨基底1例。其组织学特点类似颌内牙骨质瘤，是由孤立及聚合的牙骨质样小体和间质组成。牙骨质样小体既不同于骨样组织，又区别于颌内的牙骨质及牙骨质瘤。电镜下牙骨质样小体是含有不规则矿物小体的无细胞性胶原原纤维聚集体。诊断依靠病理检查。手术是治疗的有效办法。多采用搔刮植骨，生长活跃者可行瘤段骨截除，自体骨或异体骨移植。结论 此瘤可能来自多潜能间叶组织，具有向间叶性牙源组织分化的倾向和能力。

    Cementoma - like Tumors of Extragnathic Bone

CHEN Yan, LIANG Dongtai, HU Wenhai, et al.

    Depertment of Bone Disease, The Third Hospital of Hebei Medical University, Shijiazhuang050051

【 Abstract 】 Objective Todescribe the clinical manifestation, radiographic and pathological features ofextragnathically localized cementoma- like tumor. Methods Ten cases including 3cases of our own and 7 collected in the literature were analyzed. Results The tumor occurred more often in males with age ranged from 5 to 28 years. It commonlyarose in the metaphysis and involved femur in 5, tibia in 3, humerus in 1 and metacarpalbone in 1. Histological feature was composed of very numerous and variously sizedcementicles which were identical to dental cement and different from osteoid.Ultrastructurally cementicle- like tissue was formed by a network of collagen fibrils and irregular mineralsubstances. Conclusion The authors emphasized the establishment of thediagnosis by pathological examination. The tumor was possible to originate frommesenchymal tissue of multiple latency, which had the special differentiation in thedirection of mesenchymal odontogen.

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