A 10 Year Survey of Neonatal Kidney Mass in North-East of Iran (Khorasn)

Objective: Although abdominal mass in neonates is not common, it is very critical to detect itpromptly. 2/3 of neonatal abdominal masses belong to kidney. Correct diagnosis and immediateappropriate management can prevent morbidity and mortality. This study pays special attention toincidence, associated anomalies and mortality rate in those neonates who suffered from palpablekidney mass.Material Methods: During a period of 10 years 48250 neonates were examined for abdominalmass by neonatalogists or pediatric residents. Sonography in suspected cases of abdominal mass wasperformed to confirm the diagnosis. In all cases of neonatal death, autopsy was performed.Findings: Thirty out of 48250 neonates had abdominal mass presenting as nephromegaly (1/1600).Polycystic kidneys (PCK) were the most common cause of renal enlargement followed by multicystickidney disease (MCK) and hydronephrosis.Conclusion: It was revealed that renal mass contained most of abdominal mass in our study andmortality (73%) was higher than other reports. Also, we found that PCK was the most commonabdominal mass in our cases. Lung hypoplasia was the most common cause of death in PCK cases.