Devita, Hellman, and Rosenberg's Cancer

LWBK1006-20 LWW-Govindan-Review December 12, 2011 19:4

CHAPTER 20 CANCER OF THE

GASTROINTESTINAL TRACT

RENUKA V. IYER•RAVI CHHATRALA

SECTION 1 ESOPHAGUS AND STOMACH

DIRECTIONS Each of the numbered items below is followed by lettered answers. Select the

ONE lettered answer that is BEST in each case unless instructed otherwise.

QUESTIONS

Question 20.1.1. Which of the following statements about the incidence of esophageal

cancer is TRUE?

A. Esophageal cancer is relatively uncommon in the United States, and

the lifetime risk of being diagnosed with the disease is less than 1%.

B. Incidence rates among white men continue to increase and now

exceed 8 per 100,000 person-years, and reflect the marked increase

in the incidence of adenocarcinoma of the esophagus of more than

400% in the past 2 decades.

C. Although the incidence of adenocarcinoma in white women (2 per

100,000) is lower than that in white men, rates of adenocarci-

noma have increased in women by more than 300% during the past

20 years.

D. Only A and B.

E. All of the above.

Question 20.1.2. All of the following are risk factors for the development of squamous cell

cancer of the esophagus, EXCEPT:

A. Plummer–Vinson syndrome

B. Gastroesophageal reflux disease

C. Achalasia

D. Tylosis

Corresponding Chapters inCancer: Principles & Practice of Oncology,Ninth Edition: 78 (Molecular Biology of the

Esophagus and Stomach), 79 (Cancer of the Esophagus), 80 (Cancer of the Stomach).

231