摘要: Small-cell lung cancer (SCLC) represents a distinct clinicopathologic entity that is biologically and clinically from non-small-cell (NSCLC). It distinguished by its rapid growth characteristics, accompanied the early development of widespread metastases. Although SCLC also extremely sensitive to both chemotherapy radiotherapy, relapse usually occurs, despite treatment within 2 yr. Overall long-term survival continues be dismal, with poor 5-yr rates approx 3–8% (1).