A 17-year-old boy with a history of Crohn's disease presents with nausea and vomiting.

A 47-year-old woman with dyspnea, cough, and hemoptysis.

A 70-year-old woman with right upper quadrant pain, jaundice, tea-colored urine, and clay-colored stool.

A 62-year-old woman with left lower quadrant pain, nausea and vomiting, and low-grade fever for the past week.

A 13-year-old boy with worsening dysphagia to solid foods.

A 64-year-old woman with dysphagia, food sticking in her throat, and intermittent regurgitation of food.

A 63-year-old woman with partial gastric outlet obstruction due to pyloric stenosis.

A 30-year-old man with lymphoma and progressive shortness of breath.

A 62-year-old man with intermittent left lower quadrant pain and diffuse lower abdominal discomfort.

An 18-year-old woman presents with chronic abdominal discomfort.

A 16-month-old girl with irritability for the past two days and refuses to eat.

A 49-year-old woman with abdominal pain after ileostomy reversal.

A 26-year-old woman with progressive dysphagia.

A 52-year-old woman with worsening chest pain and dysphagia.

A 78-year-old man with dysphagia and odynophagia found to have an incidental CT finding.

A 46-year-old woman with nausea, vomiting, and loose stools.

A 13-day-old female newborn with abdominal distension and poor feeding for the past two days.

A 32-year-old man with progressive dysphagia and nocturnal regurgitation.

A 66-year-old man with intermittent, solid-food dysphagia for the past several months.

A 58-year-old woman with throat pain after choking on a chicken bone.