Endocrinology Quiz #27: Pancreatic Islet Cell Tumors

1. A 49-year-old man presents with a history of recurrent hypoglycemia episodes, particularly in the mornings and after exercise. Laboratory tests reveal elevated insulin levels in the presence of hypoglycemia. C-peptide levels are also found to be elevated. Which of the following is the most likely diagnosis? 

Question 1 of 5

2. A 58-year-old woman presents with a painful, erythematous rash on her legs, mild diabetes, and a significant weight loss over the past six months. A biopsy of the rash reveals necrolytic migratory erythema. Which of the following pancreatic islet cell tumors is most likely responsible for her clinical presentation? 

Question 2 of 5

3. A 45-year-old man with a history of peptic ulcer disease unresponsive to standard treatments undergoes an endoscopy, revealing multiple ulcers in the duodenum. Serum gastrin levels are found to be markedly elevated. Which of the following is the most likely diagnosis? 

Question 3 of 5

4. A 52-year-old man presents with watery diarrhea, hypokalemia, and achlorhydria. He reports a history of similar episodes over the past year, which have progressively worsened. Which of the following pancreatic islet cell tumors is most likely responsible for his symptoms? 

Question 4 of 5

5. A 60-year-old woman presents with gallstones, mild diabetes, and steatorrhea. Imaging studies reveal a tumor in the head of the pancreas. Which of the following substances is most likely being overproduced by this tumor? 

Question 5 of 5


 

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