the prevalence of the etiologies of abdominal masses in neonatus: a 15 years survey in amir kabir and bahrami hospitals

abdominal masses in neonatal period is one of the main causes of patients bed ridden in infantal surgery wards. the rapid encounterance with these patients has caused a decrease in mortality and morbidity. this study is a kind of historical research which has been conducted on data base management systems of two above mentioned hospitals between years 1361-1378. the final outcome was only 25 cases. from these neonatus, 68 percent were male and 32 percent were female. most of the patients were in their first neonatal week. the etiologies related to urinary system (56 percent), were found to be in the first place. tumors of different origins (20 percent), ovarian masses (12 percent) and gastrointestinal tract (12 percent) had their own places respectively. majority of cases have had surgical operations (92 percents). the case fatality rate among these patients was 24 percent which most of it was because of benign causes. the rate of mortality in male was much larger than female neonatus. we concluded that the inspection of embryo's urinary system with ultrasound and primary examination of neonatus, is vital and in most of the cases, an urgent surgery is indicated. also laboratory assessment and radiological examination in suitable therapeutic procedures in first 48-72 hours in recommended.