Rectum adenocarcinoma
Rectum adenocarcinoma
Definition
An adenocarcinoma arising from the rectum. It is more frequently seen in populations with a Western type diet and in patients with a history of chronic inflammatory bowel disease. Signs and symptoms include intestinal bleeding, anemia, and change in bowel habits. According to the degree of cellular differentiation, rectal adenocarcinomas are divided into well, moderately, and poorly differentiated. Histologic variants include mucinous adenocarcinoma, signet ring cell carcinoma, medullary carcinoma, serrated adenocarcinoma, cribriform comedo-type adenocarcinoma, and micropapillary adenocarcinoma.
Also known as adenocarcinoma - rectum, adenocarcinoma of rectum, adenocarcinoma of the rectum, rectal adenocarcinoma, rectum adenocarcinoma — per MONDO
Also identified as
Affected Organs
| Organ | Involvement | Source |
|---|---|---|
| Alimentary part of gastrointestinal system | Disease Has Associated Anatomic Site | NCIT · CC BY 4.0 |
| Alimentary part of gastrointestinal system | Disease Has Primary Anatomic Site | NCIT · CC BY 4.0 |
| Intestine | Disease Has Associated Anatomic Site | NCIT · CC BY 4.0 |
| Large intestine | Disease Has Associated Anatomic Site | NCIT · CC BY 4.0 |
| Rectum | Disease Has Associated Anatomic Site | NCIT · CC BY 4.0 |
| Rectum | Disease Has Primary Anatomic Site | NCIT · CC BY 4.0 |