肺癌在英文中被称为 lung cancer。它源于细胞内遗传物质的改变，导致肺组织发生畸变增殖。以下是一些例句：

John was diagnosed with lung cancer. (约翰被诊断出患有肺癌。)

Smoking is a major risk factor for lung cancer. (吸烟是肺癌的主要危险因素。)

Treatment for lung cancer often involves surgery, radiation therapy, and chemotherapy. (肺癌的治疗常常涉及外科手术、放疗和化疗。)