Adenomas and adenocarcinomas look alike, both being round, pink and usually less than three centimeters in width. Adenocarcinomas are more likely to be multiple and invasive into the underlying tissue, and they can metastasize to the lymph nodes, liver, and lungs.
Tumors of glandular origin and malignant tumors of glandular cells share characteristics, being round, pink, and generally smaller than three centimeters in diameter. Glandular malignancies tend to be multiple and invasive into surrounding tissue, and can metastasize to lymph nodes, liver, and lungs.