Woman with 1yr history of UTIs shows microhematuria without RBC casts. - USMLE Forums
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Old 03-25-2012
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Default Woman with 1yr history of UTIs shows microhematuria without RBC casts.

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A 26-year-old woman comes to the clinic because of a 1-year history of recurrent urinary tract infection. Urinalysis shows microhematuria without red blood cell casts. An intravenous pyelogram shows normal-sized kidneys with multiple striated cavities extruding through the pyramid from tip to base. Mild calcifications are noted. Serum blood urea nitrogen is 10 mg/dL and creatinine is 0.9 md/dL. Which of the following is the most likely diagnosis?

A. benign tubular ectasia
B. berger disease
C. medullary sponge kidney
D. renal dysplasia
E. minimal change disease
F. priapism
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Old 03-25-2012
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C. Medullary Sponge Kindney. MSK
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Old 03-25-2012
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i am guessing Medullary sponge kidney
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Old 03-25-2012
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C.
No inheritance pattern. Most commonly discovered with in IVP; striations are present in the papillary ducts of the medulla "swiss - chesse" appearance; multiple cysts of the collecting ducts are present in the medulla.
Recurrent UTIs, hematuria and renal stones.
Goljan.
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