Medullary Sponge Kidney (MSK) and Kidney Stones

Medullary Sponge Kidney (MSK) is a inborn renal dysplasia which is characterized by malformation of the terminal collecting ducts in the pericalyceal region of the renal pyramids. It is a rare type of kidney disease that affects approximately 1 in every 200 persons. One troubling problem associated with the disease is frequent occurrence of kidney stones. Kidney stones can cause progressive damage to the kidneys, and ultimately, kidney failure. Prevention, management and treatment for kidney stones is essential for people with MSK.

Why does Medullary Sponge Kidney (MSK) cause kidney stones?

As we know, the main job of the kidneys is to excrete waste products from bloodstream in the form of urine. As the blood moves through the kidneys, unwanted substances are discharged out. The filtering job is mainly fulfilled by the nephrons. Once the waste products are removed from bloodstream, they move down tiny collecting tubules towards the ureter, ducts that carry urine from kidneys to the bladder. These tiny tubules join together until they reach the renal pelvis wherein ureters begin.

As the tubules join, they are supposed to get progressively bigger as they get fewer in number. In Medullary Sponge Kidney, however, the tubules are irregular in diameter, forming pools of urine along the way. These pools will cause formation of kidney stones.

Treatment for kidney stones in Medullary Sponge Kidney (MSK)

As is surveyed, approximately 59% people with Medullary Sponge Kidney (MSK) experience absorbing hypercalcemia. People with MSK share the similar metabolic disorders as people with kidney stones. Sometimes, kidney stones pass out in the urine without medical intervention. If, however, they don’ pass out on their own, they may need to be surgically removed. If people experience kidney infection, antibiotics will be prescribed to control the condition. By drinking extra liquids, kidney stones can be prevented. Calcium stone as the most common type of kidney stones can be deterred by regularly taking diuretic medicines.

People with Medullary Sponge Kidney (MSK) should monitor their kidney condition and be alert of any signs of kidney stones. Early prevention, detection and treatment are essential to get best long-term results.

If you or a loved one has MSK and find kidney stones uncontrollable, you may make an appointment with your doctor, or contact us directly for free help.