BCL2 and carcinoid tumor: In this study, Bcl-2 was highly expressed in 18.7% (N = 3/16) patients with typical carcinoid, in none (N = 0/5) with atypical carcinoid, in 89.6% (N=26/29) with large cell carcinoma, and 90.1% (N = 64/71) of those with SCLC.