“…Specifically, despite there being no statistical significance, there was a serious propensity (p<0.1) for patients with adenocarcinoma to have improved survival compared to patients with other histological types. Bonnette and Granone reported similarly favorable results in terms of survival for adenocarcinomatous tumor pathology (12,13). In other retrospective studies, however, the prognostic value of primary tumor histology was shown not to be statistically significant (5,8,10,11,14,15,(19)(20)(21).…”