A patient comes with an acute abdominal pain and states that during the last 24 hours, he vomited several times. In the beginning, his vomiting included gastro-duodenal secretions, but, in the last 2 times, he vomited blood. What is the diagnosis?

? Mallory-Weiss syndrome (MWS). It is characterized by ulcerations of the lower esophagus leading to hematemesis. It is caused by a long-term and forceful multiple vomiting, which tears and lacerates the mucosa of the lower esophagus (post vomiting causing esophageal and upper GI tract ulcers)