[Renal venous thrombosis in neonates].

The authors present an account on a neonate with dextro-lateral renal venous thrombosis. They focus attention on the diagnostic and therapeutic procedure and compare it with available data from the literature. Contrary to data in the literature, they did not observe in the acute stage of renal venous thrombosis signs of disseminated intravascular coagulation in peripheral blood. It did not prove possible to elucidate the action of any of the factors leading to the development of renal venous thrombosis. After evidence of permanent functional loss of the right kidney nephrectomy was performed. Histopathological examination provided evidence of obliterating thrombosis of the renal veins with partial recanalization and calcifications. The authors emphasize the necessity of early diagnosis of renal venous thrombosis and adequate treatment based on the revealed findings.