12-02-2005, 01:16 PM
A 35 yo woman who recently emigrated from Russia comes to you because of hematuria. She has a hitory of frequent headaches. Extensive evaluation did not reveal the cause of her headaches. They occur almost everyday, and she tried various analgesics to relieve them. Her family history is significant for HTN and DM. She does not use tobacco, alcohol, or drugs. Her BP 120/70 mmHg and HR 80/min. Physical examination shows no abnormalities. Urinalysis shows numerous unchanged RBCs/hpf. Which of the following is the most likely cause of this patient's condition?
