<prompt> A 26 year old women in the first trimester of pregnancy has been admitted with retching and repeated vomiting with large hematemesis. Her pulse rate is 126minute and blood pressure is 80 mm Hg systolic. The most likely diagnosis isMallory-Weiss syndromeBleeding from oesophageal varicesPeptic ulcerHiatus hernia  <response>: Ans. is a Mallory weiss syndrome Upper gastorintestinal bleeding : Occasionally, persistent vomiting may be accompanied by worrisome upper gastrointestinal bleeding. The obvious concern is that there is a bleeding peptic ulceration, however, most of these women have minute linear mucosal tears near the gastroesophageal junction. Women with these co called Mallory-Weiss tears usually respond promptly to conservative measures. 