英语语法分析

Primary appendiceal cancer is a rare neoplasm.

原发性兰尾癌是很稀有肿瘤。

MR images further demonstrated urinary bladder invasion by the appendiceal tumor.

矢状面磁振造影更进一步显示此阑尾肿瘤侵犯胱胱后壁。

Method: retrospective analysis of clinical data of 11 patients with appendiceal tumor.

方法：回顾分析11例阑尾肿瘤患者的临床资料。