ABSTRACT
In theUnited States, approximately 40,000 personswere expected to receive a diagnosis of small cell lung cancer (SCLC) during 2006, accounting for 20-25% of all lung cancer cases (1,2). Among those patients with SCLC, only one-fourth of themwill be expected to have limited disease in the thorax because the majority already has disseminated disease in the thorax or extrathorax.
