The incidence of renal vein thrombosis (RVT) was reported as 0.5 per 1000 neonatal intensive care unit admissions. Any underlying predisposing factors, such as asphyxia, sepsis, dehydration, hyperviscosity, maternal diabetes, birth injury, or indwelling intravascular catheters, in combination with inherited prothrombotic risk factors, play a major role in the pathogenesis of neonatal RVT. We report a case of bilateral RVT in a premature infant associated with maternal diabetes and methylenetetrahydrofolate reductase (MTHFR) gene mutation.

Keywords: renal ven trombozu, diyabetik anne bebeği, MTHFR mutasyonu.