Anatomic pathology selected abstracts
March 2023—Prognostic stratification of patients with surgically resected invasive pulmonary adenocarcinoma must be improved. The authors conducted a study to evaluate the prognostic value of complex glandular patterns (CGPs) in patients with resected stage I through IV lung adenocarcinoma. The presence of CGPs as a minor to predominant component was tested for association with overall survival (n=676) and relapse-free survival (n=463) after surgery. CGPs were observed in 284 (42 percent) tumors. Cribriform and fused gland were the predominant patterns in 35 and 37 cases, respectively. The presence of a cribriform pattern was associated with worse relapse-free but not overall survival.