[Renal vein thrombosis--renal colic with unusual course].

Although renal vein thrombosis (RVT) is a complication of various renal and medical conditions, nephrotic syndrome is known as the most frequent one. RVT in patients suffering from nephrotic syndrome is rarely present with flank pain. Most patients are asymptomatic and recover spontaneously. The treatment of RVT consists of handling the primary condition and treating the thrombosis itself by anticoagulation. In severe cases with grave prognosis thrombolytic therapy is needed. This is a case study of a 38 year old male who presented with severe renal colic which subsequently diagnosed as RVT complication of the nephrotic syndrome. The article also reviews the literature regarding the frequency, etiological factors, pathophysiology, radiological diagnosis and disease treatment.