Fact Sheets

Rectal Bleeding
Blood in the stool can be an alarming symptom that signals underlying conditions from hemorrhoids to colon cancer.
Anesthesia for Colonoscopy
For patients having a colonoscopy, Yale Medicine's anesthesiologists offer both conscious sedation and general anesthesia, tailored to your needs.
Small Intestine Adenocarcinoma
A type of cancer that begins in glandular cells that line the small intestine.
Gastrointestinal Cancers
Gastrointestinal cancers occur when DNA changes cause malignant (cancerous) cells to grow along the gastrointestinal tract. Learn about symptoms and treatment.
Gastrointestinal Neuroendocrine Tumors
Gastrointestinal neuroendocrine tumors are cancers that develop in the digestive tract. They most often form in the small intestine, but can develop in the stomach, rectum, appendix, or other parts of the gastrointestinal system.
Pediatric Crohn's Disease
Pediatric Crohn’s Disease is an inflammatory bowel disease that can stunt growth in children. Learn about symptoms and treatment.
Dizziness
Dizziness is a term to describe a range of sensations, such as feeling faint, weak, or unsteady. Learn about symptoms and treatment.
Radiation Therapy
Half of all people with cancer are treated with radiation therapy. It is effective for treating almost all types of cancer in almost any part of the body.
Unsedated Transnasal Endoscopy (uTNE)
A procedure in which a health care provider examines the upper gastrointestinal tract with a thin, flexible tube equipped with a camera called an endoscope. The endoscope is inserted into the nose, down the throat, and into the stomach and sometimes the duodenum, the first part of the small intestine. The procedure is done without sedation.
Radiofrequency Ablation (RFA)
Radiofrequency ablation (RFA) is a treatment that uses heat to destroy precancerous tissue in the esophagus. Learn about this treatment.