Transabdominal ultrasonography in preoperative staging of gastric cancer

AIM: To investigate the value of transabdominal ulbasonography (US) in the preoperative staging of gastric cancer.METHODS: A total of 198 patients with gastric cancer underwent preoperatively transabdominal US, depth of tumor infiltration was assessed in 125 patients, and lymph node metastasis was assessed in 106 patients,RESULTS: The staging accuracy of transabdominal US was 55.6%, 75.0%, 87.3% and 71.1% in T1, T2, T3 and T4 carcinomas, respectively. The overall accuracy was 77.6%.The detection rate for pancreatic invasion and liver invasion was 77.4%, 71.4%, respectively. The sensitivity, specificity,accuracy of transabdominal US in assessment of lymph node metastasis were 77.6%, 64.1%, 72.6%, respectively.Various shapes such as round, ovoid, spindle were encountered in benign and malignant lymph nodes. Majority of boa benign and malignant lymph nodes were hyperechoic and had a distinct border. Benign lymph nodes were smaller than malignant lymph nodes in length and width (P = 0.000,0.005). Irregular shape, fusional shape, infiltrative signs,inhomogenous echo were seen mainly in malignant lymph nodes (P = 0.045, 0.006, 0.027, 0.006).CONCLUSION: Transabdominal US is useful for preoperative staging in gastric cancer, although it is difficult to differentiate benign from malignant lymph nodes.

Neck dissection for recurrent and persistent lymph nodes of nasopharyngeal carcinoma after radiotherapy： effect and choice

目的将在放射疗法以后与周期性、坚持的淋巴节点为鼻咽的癌的病人调查最好的外科的模式。有在放射疗法以后的周期性、坚持的淋巴节点的鼻咽的癌的 88 个病人的临床的数据回顾地被分析的方法。在层次之中的深奥淋巴节点和关系的层次被分析；幸存率和包括激进的颈解剖(RND ) 的外科的模式的周期性的率，修改的激进的颈解剖(MRND ) ，选择的颈解剖(SND ) ，和淋巴节点切除术(LNR ) 被分析；手术后的放射疗法的角色被评估。周期性、坚持的淋巴节点主要在水平 II 定位了的结果( 1 )(55.6%和58.6%，分别地)，下次是水平 III 并且很少在水平 IV ， V ，并且我，而是层次 IV 的数字， V ，并且我与忍受癌症的淋巴结是相对多于临床的测量的。(2 ) 通常，有涉及水平 III 和 IV 的淋巴节点的病人把另外的层次同时深奥；百分比分别地是 63.6% 和 88.9% 。然而，在水平 II 和 V 的淋巴节点主要被孤立。(3 )5 年的幸存率和整个组的周期性的率分别地是 42.77% 和 22.7% 。(4 ) RND， MRND， SND，和 LMR 组的 5 年的幸存率分别地是 39.75% ， 60.00% ， 37.87% ，和 44.10% ；差别是不足道的(木头等级 = 1.0， P = 0.8011 ) ；在广泛、本地的外科组之间的周期性的率是不足道的(X 2= 0.470， P = 0.493 ) 。(5 ) 有或没有手术后的放射疗法的病人的 5 年的幸存率分别地是 39.06% 和 45.26% ；差别是不足道的(木头等级 = 0.06， P = 0.8138 ) 。当周期性、坚持的淋巴结是超过一水平时，广泛的外科被推荐的结论包含了或很大或不可移动不那样， SND 应该被执行，手术后的放射疗法如果必要是重要赔偿。