rectal signet ring cell adenocarcinoma (MONDO_0004336) can be described as follows. An infiltrating adenocarcinoma arising from the rectum. It is characterized by the presence of malignant glandular cells with prominent intracytoplasmic mucin. These cells constitute more than 50% of the malignant cellular population. Also known as: rectal signet Ring cell adenocarcinoma, rectum signet ring cell carcinoma, signet Ring adenocarcinoma of rectum, signet Ring adenocarcinoma of the rectum, signet Ring cell adenocarcinoma of rectum, signet Ring cell adenocarcinoma of the rectum.