【摘要】 对34例经手术或/和病理证实的龈癌的临床X线表现进行分析,肿瘤骨破坏的主要X线表现有3种类型:(1)溶骨型,26例:有边缘不规则的限局性“u”和“V”形溶骨破坏区,大多数见于下颌骨。(2)虫蚀型,3例:仅见于上颌骨。(3)混合型,4例:(1)(2)型同时存在,见于上颌骨,仅见1例齿槽突非特异性吸收。34例中破坏缘轻度硬化14例;破坏区内残留斑点骨质6例;齿根吸收破坏的浮齿5例;肿瘤侵犯上颌窦底壁6例。肿瘤侵犯颌骨的X线表现是龈癌的早期诊断征象之一,并可提示进一步活检证实。最后讨论了肿瘤的鉴别诊断。更多还原

【Abstract】 The cliniacl features and X-ray signs of 34 cases of gingival cancer proved by operation and /or pathology were analysed. The chief X-ray findings included three types of bony destruction: (1) Osteolytic type, 26 eases: most of them found in lower jaw with irregular edge and localized "U" and "V" shaped bony destruction area.(2) Moth--eaten type, 3 cases: only found in maxillary bone. (3) Mixed type, 4 eases: both osteolytic and motheaten type of destruction found in maxillary bone. In one case only nonspeeific absorption of alveloar process was found. Among the 34 cases, there were the destructive edge with mild degree of sclerosi in 14cases, residuol bony spots within destrutive aneain 6 cases, floating teeth with absorbed teeth roots in 5 cases, and the tumor invasion of the floor of maxillary sinus in 6 eases. The positive radiologieal findings of tumor invasion of the jaw may be one of the early diagnostic signs of gingival cancer and can suggest further biopsy. Differential diagnosis of tumor were discussed.更多还原