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目的：研究真性、假性室间隔膜部瘤的诊断和外科治疗及其疗效。方法：１９８４１９９８ 年本院全组真性或假性室间隔膜部瘤手术３９ 例，从病因学、病理解剖学、术前ＵＣＧ 检查、术中所见几方面进行比较，对全部３１ 例假性室间隔膜部瘤患者进行术后随访。结果：假性室间隔膜部瘤诊断从病因学、病理解剖学、术前ＵＣＧ 检查、术中所见等均可确立。术前诊断主要手段是ＵＣＧ。术中所见最后确定真性和假性膜部瘤，并采用不同的手术方法。全部手术治疗无死亡，无合并症。术后对３１ 例假性膜部瘤患者随访６ ～１５ 年（平均１１．６ 年），近期、远期疗效均满意。全部恢复正常人生活。结论：（１）术前、术中鉴别出假性膜部瘤对手术治疗有指导意义；（２） 对假性室间隔膜部瘤应采用改进的手术方法，其疗效是满意的。
Objective: To investigate the diagnosis and surgical treatment of true and false ventricular septal mesothelioma and its efficacy. Methods: 39 cases of true or false ventricular septal medullary tumor surgery were performed in our hospital from 1984 to 1998. The etiology, pathological anatomy, preoperative UCG examination, and intraoperative findings were compared. The results were false in all 31 cases. Patients with ventricular septal tumors were followed up. Results: The diagnosis of false ventricular septal medullary tumor can be established from etiology, pathological anatomy, preoperative UCG examination, and intraoperative findings. The main method of preoperative diagnosis is UCG. The final determination of true and false membranous tumors was performed during the procedure and different surgical procedures were used. All surgical treatment died without complications. Postoperatively, 31 patients with pseudomembranous neoplasms were followed up for 6 to 15 years (average 11.6 years). The short-term and long-term outcomes were all satisfactory. All returned to normal life. Conclusions: (1) Preoperative and intraoperative identification of pseudomembranous tumors has guiding significance for surgical treatment; (2) Improved surgical methods should be used for pseudo-ventricular septal mesothelioma. The efficacy is satisfactory.