Medullary sponge kidney on IVP
40 years old male with haematuria
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Ectatic distal collecting ducts and also dilated contrast filled intrapapillary tubules within the renal medulla are seen on intravenous pyelogram.
A case of Prof. Saeed Rad. Tabriz, Iran.
Intravenous pyelogram showed ectatic distal collecting ducts contain the microcalcification which is called bouquet of flowers appearance. If you look closer there is also dilated contrast filled tubules within the renal medulla that known as paintbrush appearance . These findings are characteristic for medullary sponge kidney ( MSK ) on intravenous pyelogram.