FASLG and carcinoma of esophagus: However, there are few other studies which reported that FASL-844T>C polymorphism significantly increased the risk of lung cancer (Zhang et al., 2005), oesophageal cancer, (Sun et al., 2004a), ovarian cancer (Li et al., 2013), and Systemic Lupus Erythematous (Wu et al, 3003).