Birth Defects of the Kidney Explained in New NIDDK Fact Sheets
Kranzfelder K - Kidney dysplasia, which occurs during fetal development, is a condition in which the internal structures of one or both of the baby’s kidneys fail to develop normally. Babies with just one working kidney can grow and develop normally with few health problems. However, fetuses with dysplasia in both kidneys may not survive pregnancy and, if they do, they will need dialysis or a kidney transplant early in life. Medullary sponge kidney (MSK) is a birth defect in which cysts form in the inner part of the kidney — or medulla — keeping urine from flowing freely through the kidney’s inner tubules. While many people with MSK have no symptoms, problems such as blood in the urine, kidney stones and urinary tract infections could develop, but usually much later in life — around ages 30 to 40. MSK rarely leads to more serious problems, such as total kidney failure. [more...]
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