Antegrade pyelography: a further look at an old technique

Upper urinary tract obstruction: pressure/flow studies in children

34 upper urinary tract pressure/flow studies were carried out in 24 children. Obstruction was reliably diagnosed in 8 studies, and excluded in 21. This technique may provide information of clinical value in the patient with upper urinary tract dilatation.

Bilateral ureteral obstruction due to malignant lymphoma

Two cases are presented of bilateral ureteral obstruction and uremia due to pressure from nodes involved in disseminated lymphoma. Their successful managment is reported.

Retroperitoneal fibrosis associated with malignant disease

The clinical features of 19 patients with malignant infiltration of the retroperitoneal tissues are described. These patients usually presented with unexplained uraemia and nonspecific symptoms; only a few had other evidence of malignancy. The diagnosis was resolved only by histological examination of multiple biopsy specimens. Since the prognosis is usually very poor it is essential to distinguish this condition from non-malignant causes of retroperitoneal fibrosis.

Renal puncture in infancy

Renal puncture was used in the diagnosis of five infants with suspected cystic disease of the kidney. This technique is simple and it may provide information that may otherwise be difficult to obtain.