英语语法分析

Methods: Sessile polyps were removed piecemeal and pedunculated polyps transected at stalk.

方法：无蒂息肉采取逐渐切除的方法，有蒂息肉则横断切除蒂的方法。

Objective:To improve the recognition and diagnosis of pedunculated hepatocellular carcinoma.

目的：提高对外生型肝癌的认识和诊断。

PURPOSE to study the diagnosis and treatment of pedunculated hepatocellular carcinoma (PHC).

目的研究带蒂肝细胞癌(phc)的诊断与治疗。