The Correct Answer is D
Explanation:
Most esophageal cancers are asymptomatic
, and at the time of diagnosis most are unresectable. Barrett's syndrome is associated with adenocarcinoma of the esophagus. Despite the increasing incidence of adenocarcinoma, the most common type of esophageal carcinoma in the United States is squamous cell carcinoma, which generally is located in the distal third of the esophagus.
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