Abstract
We have reported 9 cases with multicystic dysplastic kidney (MCDK), diagnosed 5 case in prenatal period, 2 cases in neonatal period and 3 case in 3 months' infantile examination. The mean observation period after diagnosed was 40 months. Multi-cystic lesions followed by ultra-sonography (US) disappeared in 2 cases in this period. Abnormality of the contralateral kidney was complicated in 2 out of 9 cases, which was hydronephrosis with pyelo-ureteral junction (PUJ). 7 cases without abnormalities of the contralateral kidney and 1 case with PUJ showed normal∼over estimated renal function by DTPA renal scintigraphy and compensatory hypertrophy by DMSA renal scintigraphy. One case with PUJ and frequent UTI showed renal impairment. MCDK is diagnosed in prenatal period by US and imaging techniques. The majority of MCDK undergo spontaneous resolution during the follow-up period. There is a possibility that as before MCDK has been handled as solitary kidney. Early, especially in prenatal period and accurate diagnosis of MCDK by imaging techniques, and long term follow-up studies are necessary.
