Chronic Kidney Disease USMLE Step 1 Practice Question
A 61 year old man presents with gross hematuria, weight loss, and dull flank pain. He has a 40 pack year smoking history. Examination reveals a left sided varicocele that does not decrease when he lies supine. CT scan shows a mass arising from the upper pole of the left kidney. Which of the following paraneoplastic findings is most likely associated with this tumor?
Answer choices
- AErythrocytosis due to ectopic erythropoietin productionCorrect answer
- BWatery diarrhea due to VIP secretion
- CCushing syndrome due to ACTH deficiency
- DHypocalcemia due to low vitamin D
- EHyperglycemia due to glucagon secretion
- FHypercalcemia from ectopic PTHrP secretion by the renal cell carcinoma
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