, |ICDO = |Image = |Caption = |OMIM = |OMIM_mult = |MedlinePlus = |eMedicineSubj = |eMedicineTopic = |DiseasesDB = |MeshID = D000230 | }} Adenocarcinoma's a cancer originating in glandular tissue. This tissue's also part of a larger tissue category known as epithelial. Epithelial tissue includes skin, glands and a variety of other tissue that lines the cavities and organs of the body. Epithelium's derived embryologically from ectoderm, endoderm and mesoderm. To be classified as adenocarcinoma, t… (More on Adenocarcinoma)