Digestive System

At what age should a person of average risk have his or her first screening colonoscopy?

• 30

• 40

• 50

• 60

Familial adenomatous polyposis (FAP) and hereditary nonpolyposis colorectal syndrome (HNPCC) are most closely associated with which type of cancer?

• esophageal

• pancreatic

• anal

• colorectal

Gastroesophageal reflux disease (GERD) is associated with cancer of which anatomic region?

• colon

• esophagus

• liver

• stomach

What is the dose-limiting structure of most concern for radiation treatments of colorectal cancers?

• bladder

• large bowel

• small bowel

• spinal cord

What is the dose-limiting structure of most concern for radiation treatments of the esophagus?

• esophagus

• heart

• trachea

• spinal cord

The Whipple is a surgical procedure associated with cancer of which organ?

• pancreas

• stomach

• esophagus

• colon

What condition is an iron-deficient anemia characterized by esophageal webbing?

• Barrett esophagus

• Gardners syndrome

• Plummer-vinson syndrome

• Tenesmus

Which of the following is not a risk factor for anal cancer?

• anal intercourse

• diet

• HPV

• immunosuppression

What is the most common histologic type of cancers that occur in the lower third of the esophagus?

• Adenocarcinoma

• Transitional cell

• Squamous cell carcinoma

• Small cell carcinoma

Which of the following cancer sites can be treated with endocavitary radiation therapy?

• esophagus

• liver

• stomach

• rectum