Most common type of gastric tumor in adults:
Correct Answer: Adenocarcinoma
Description: About 85% of stomach cancers are adenocarcinomas, with 15% due to lymphomas, gastrointestinal stromal tumors (GISTs), and leiomyosarcomas.
Gastric adenocarcinomas may be subdivided into two pathologically defined categories:
Diffuse type, in which cell cohesion is absent, so that individual cells infiltrate and thicken the stomach wall without forming a discrete mass.
Intestinal type, characterized by cohesive neoplastic cells that form gland-like tubular structures.
The diffuse carcinomas occur more often in younger patients, develop throughout the stomach (including the cardia), result in a loss of distensibility of the gastric wall (so-called linitis plastica, or “leather bottle” appearance), and carry a poorer prognosis.
Reference: Harrison’s P R I N C I P L E S O F I N T E R N A L M E D I C I N E 20th edition page no 568
Category:
Medicine
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now