Gatrointestinale

An 82-year-old woman presents 1-hour after the sudden onset of moderate-to-severe epigastric pain. The pain radiates to her back, both scapulae, and both arms. She has been nauseated and vomited three times in the past hour. Her past medical history is remarkable for peptic ulcer disease 10-years ago, cholelithiasis for the past 6-years, and stable angina pectoris for the past 3-years. She has had occasional episodes of biliary colic and two bouts of acute cholecystitis which were treated conservatively. Her temperature is 36.8C (98.2F), blood pressure is 120/70 mm Hg, pulse is 90/min, and respirations are 14/min. The lungs are clear to auscultation. Abdominal examination shows a soft abdomen with mild tenderness to palpation in the epigastrium. Murphy's sign is negative. Which of the following studies should be done first?

A 43-year-old male (Patient A) is being evaluated for an esophageal disorder. Esophageal manometry tracings after a single swallow of 5 ml of water are shown on the slide below. UE: upper esophagus ME: middle esophagus LES: lower esophageal sphincter Which of the following is the most likely diagnosis in this patient?

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