PAEA Surgery End Of Rotation (EOR) Practice Exam

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Prepare for the PAEA Surgery EOR Exam. Test your knowledge with flashcards and multiple choice questions, with hints and detailed explanations. Gear up for your surgical rotation success!

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Which type of malignancy represents half of all small intestine cancers?

Adenocarcinomas
Neuroendocrine tumors
Lymphomas
GISTs

The correct answer is: Adenocarcinomas

Adenocarcinomas are indeed the most prevalent type of cancer found in the small intestine, making up a significant portion of small intestine malignancies. This type of cancer originates from the glandular epithelial cells lining the intestine. The small intestine is not typically a site for common cancers like those found in the stomach or colon, but when cancers do occur in this area, adenocarcinomas are the most frequent, accounting for about half of all small intestinal cancers. Neuroendocrine tumors, while they represent a distinct and important category of malignancies found in the small intestine, typically do not account for as large a proportion as adenocarcinomas. Similarly, lymphomas and gastrointestinal stromal tumors (GISTs) constitute smaller fractions of small intestine cancers compared to the prevalence of adenocarcinomas. Understanding the epidemiology of small intestinal cancers is key for clinical practice, as it highlights the predominance of adenocarcinomas in this region, guiding diagnosis and treatment strategies.