Angiodysplasia as a cause of severe hematochezia in a child with end-stage renal failure.

Angiodysplasia is a frequent cause of gastrointestinal bleeding in adults with chronic renal failure (CRF); however, there is no data about this association in children. The mechanism of this association is not known. We report a 4.

Hypocomplementemic urticarial vasculitis syndrome in three siblings.

Hypocomplementemic urticarial vasculitis syndrome (HUVS) is relatively uncommon and generally seen in the fourth decade of life. There are very few pediatric cases with the diagnosis of HUVS in the literature. In this report, we describe the first familial cases of HUVS in three siblings.

Nutcracker syndrome with urolithiasis.

The nutcracker syndrome, caused by compression of the left renal vein between the superior mesenteric artery and the aorta, usually manifests with hematuria, flank pain and proteinuria. We report on a 9-year-old boy who was previously diagnosed with urolithiasis but had significant proteinuria, not explained by this diagnosis. On further investigation by renal Doppler ultrasonography it was found that he had nutcracker syndrome.

Treatment of severe Henoch-Schönlein nephritis: justifying more immunosuppression.

The prognosis of Henoch-Schönlein purpura (HSP) nephritis is more severe than originally thought, with a significant portion progressing to deterioration of renal function in adulthood. Proteinuria adversely affects the outcome. The aim of this study was to evaluate the initial single-center results of a treatment protocol for severe HSP nephritis based on the Heaton classification.