Fact Sheets

Rectal Bleeding
Blood in the stool can be an alarming symptom that signals underlying conditions from hemorrhoids to colon cancer.
Colorectal Cancer
Colorectal cancer is a malignant (cancerous) growth that forms in the colon or rectum. Learn about symptoms and treatment.
Gastrointestinal Cancers
Gastrointestinal cancers occur when DNA changes cause malignant (cancerous) cells to grow along the gastrointestinal tract. Learn about symptoms and treatment.
Small Intestine Adenocarcinoma
A type of cancer that begins in glandular cells that line the small intestine.
Gallbladder Cancer
A type of cancer that begins in the gallbladder, a small organ located below the liver.
Colorectal Polyps
A colorectal polyp is an abnormal but often benign growth that forms on the inner (mucosal) wall of the colon or rectum. Learn about symptoms and treatment.
Stomach Cancer
Stomach cancer develops when malignant cells begin to grow somewhere in the five layers that form the stomach lining. Learn about symptoms and treatment.
Radiofrequency Ablation (RFA)
Radiofrequency ablation (RFA) is a treatment that uses heat to destroy precancerous tissue in the esophagus. Learn about this treatment.
Anesthesia for Colonoscopy
For patients having a colonoscopy, Yale Medicine's anesthesiologists offer both conscious sedation and general anesthesia, tailored to your needs.
Gastrointestinal Stromal Tumors (GIST)
A gastrointestinal stromal tumor is a rare type of cancer that starts in cells in the wall of the digestive tract. Learn about symptoms and treatment.