위암

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외과학-위암
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목차

Epidemiology
Risk Factors
Pathology
Clinical Presentation

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Epidemiology
The 2nd most common leading cause of cancer death
Substantial geographic variation in the incidence internationally
- Higher rates : Japan, some parts of South America
- Lower rates : Western Europe, the United States

The 14th most common cancer in the United States
Male : Female= 2 : 1
black men > white men
The incidence also increases with age - peaking in the seventh decade
Environmental exposure as well as other cultural or genetic factors influence the predisposition

Risk Factors
Nutritional
Low fat or protein consumption Salted meat or fish High nitrate consumption High complex-carbohydrate consumption
Environmental
Poor food preparation (smoked, salted) Lack of refrigeration Poor drinking water (well water) Smoking
Social

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