A 35-year-old woman presents with episodes of obtundation, somnolence, and tachycardia. An insulinoma is suspected based on a random serum glucose test value of 38 mg. per dl. Which of the following statements is/are true?
A. The most important diagnostic study for insulinoma is an oral glucose tolerance test.
B. It may be helpful to perform ERCP in an effort to localize the tumor.
C. Most patients with insulinoma present with extensive disease, rendering them only rarely resectable or curable.
D. An important component of the preoperative evaluation in patients with presumed insulinoma involves confirming elevated C-peptide or proinsulin levels and screening for anti-insulin antibodies.
Answer:D
A 35-year-old woman presents with episodes of obtundation, somnolence, and tachycardia. An insulinoma is suspected based on a random serum glucose test value of 38 mg. per dl. Which of the following statements is/are true?
A. The most important diagnostic study for insulinoma is an oral glucose tolerance test. B. It may be helpful to perform ERCP in an effort to localize the tumor. C. Most patients with insulinoma present with extensive disease, rendering them only rarely resectable or curable. D. An important component of the preoperative evaluation in patients with presumed insulinoma involves confirming elevated C-peptide or proinsulin levels and screening for anti-insulin antibodies.