Review Question - QID 110001

A 62-year-old woman presents to the emergency department after an episode of light-headedness. She was using the bathroom when she felt light-headed and fell to the floor. Her daughter found her and brought her into the emergency department right away. The patient has a past medical history of obesity and diabetes mellitus. She came to the emergency department 1 week ago for a similar complaint. The patient states that she has otherwise felt well with the exception of fatigue, constipation, an odd sensation in her chest, and a decreased appetite and desire to drink recently causing her to lose 10 pounds. Her temperature is 98.0°F (36.7°C), blood pressure is 122/88 mmHg, pulse is 92/min, respirations are 14/min, and oxygen saturation is 99% on room air. Physical exam reveals a cardiopulmonary exam within normal limits and stable gait. The patient has an obese abdomen with abdominal distension. Strength is 5/5 in the upper and lower extremities. Which of the following is associated with the most likely diagnosis?