Bilateral multicystic dysplastic kindey is congenital disorder that is fatal in newborn period. Today, with the development of high resolution ultrasonography, multicystic dysplastic kidney is diagnosed more easily than before, and it is possible
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observe the fetal urinary system with any possible developmental abnormality, since 15 weks after the last menstrual period.
Even though it can be diagnosed in early gestational period, multicystic dysplastic kidneys were diagnosed at the later second trimester or early third trimester in the other cases.
In multicystic dysplatstic kidney, especially in bilateral, most of the neewborn is fatal within the several days after the birth.
Because of it's fatality, precise prenatal diagnosis in the early pregnancy may allow patients the option of elective abortion or may prevent unnecessary obstetric intervention,
We report a case of congenital bilateral multicystic dysplastic kidney, diagnosed in utero by ultrasonography at the 20 wks of gestational age.
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