Compares with non-small cell lung cancer,small cell lung cancer (SCLC) generally has a more rapid doubling time,a higher growth fraction,and earlier development of widespread metastases.

• 与非小细胞肺癌相比较,小细胞肺癌具有更快的肿瘤倍增时间、快速生长以及易于早期转移的特点。