鼻咽癌放疗后CT扫描残留块影追踪观察

目的：观察鼻咽癌放疗后CT扫描残留块影与鼻咽癌复发的关系。方法：对152例鼻咽癌患者治疗后追踪观察3～7年。对CT扫描显示有残留块影者，结合患者的自觉症状和临床检查，对比分析CT系列片。结果：鼻咽癌放疗后CT扫描发现有残留块影占58．5％，其中存在咽旁间隙占23％，颈动脉鞘区占11．1％。咽旁间隙有残留块影者有51％出现复发转移。颈动脉鞘区有残留块影者有41％出现复发转移。结论：鼻咽癌放疗后咽旁间隙及颈动脉鞘区肿瘤残留块影是一个预期复发因素。

THE OBSERVATION OF FOLLOW UP FOR NPC AFTER RADIOTHERAPY CT SCAN,S WITH RESIDUAL TUMOR MASS

Objective:To investigation the relation between the nasopharyngeal carcinoma(NPC)recurrent and CT scan's with residual tumor massafter rediotherapy Methods:152 cases of NPC patients were regularity follow up after radiotherapy In the course of reexamination,all patients undergone clinical examination and CT scan's,which series films were analysed Results: The residual rate of tumor mass found to CT films being 58 5% for all NPC patients after treatment Particularly, in parapharyngeal space was 23 0% and in neck arteries sheathed was 11 1% The rate of NPC recurrent in the patients with parapharyngeal space residual tumor mass was 51%, with neck arteries sheathed residual tumor mass was 41% Conclusion:The results suggest: the NPC patients after treatment, in parapharyngeal space and neck arteries sheathed have residual tumor mass that were prediction recurrent factors for NPC