WHO's updated histopathological classification 2021, Adenocrcinoma is divided into the following types: Minimally Invasive Adenocarcinoma (MIA); Invasive Non-Mucinous Adenocarcinoma (INMA); Invasive Mucinous Adenocarcinoma (IMA); Colloid Adenocarcinoma (CA); Fetal Adenocarcinoma (FA) and Enteric Adenocarcinoma (EA).