An alcoholic 44 year-old man is brought to the emergency room because of severe abdominal pain and vomiting large amount of blood. The patient was throwing up frequently since yesterday but he didn't notice any blood until two hours ago. The last time he had alcohol was yesterday afternoon during a banquet. The patient had never complained of any related symptoms before. He doesn't smoke or take any recreational drugs. What is the most likely diagnosis of this patient's condition? A- Esophageal varices B- Mallory-Weiss Syndrome C- Cancer esophagus D- Acute gastritis Answer: http://medical-usmle.com/?p=1002
