Transabdominal ultrasonography was undertaken in veterinary practice to examine 26 sheep reported by the farmer, to present with clinical signs consistent with obstructive urolithiasis. There was no evidence of calculi within the vermiform appendix, nor was the bladder imaged in 12 of these 26 sheep. Uroperitoneum was diagnosed in two of three growing male lambs, and resulted from urine leakage...

the common use of maternal ultrasonography has increased the apparent incidence of neonatal hydronephrosis. many of these cases are found to have partial obstruction at the ureteropelvic junction (upj). these patients are safely managed in our institution with careful observation and only occasionally require surgical intervention. the authors present two contrasting cases of suspected upj obst...

Uropathy associated with hydronephrosis was observed frequently in our male KK-Ay mouse colony during a long-term study of diabetes. The lesion occurred in 24 of the 31 KK-Ay male mice and accounted for the greatest number of spontaneous deaths among them. It was observed after 4 months of age and involved about hard plugs of altered seminal material resembling the seminal vesicle secretion. Th...

INTRODUCTION The management of neonates with congenital hydronephrosis (CHN) diagnosed antenatally is still controversial. MATERIALS AND METHODS A prospective study was performed in all newborn infants with CHN born over a 2-year period in order to identify which neonates require a full radiologic investigation including investigation with invasive tests such as voiding cystoureterography (VC...

Abdominal actinomycosis causing hydronephrosis in a patient with a ventriculoperitoneal shunt is very rare. A 27- year-old female patient was admitted complaining of lower abdominal pain. She had undergone ventriculoperitoneal shunt surgery 10 years ago. Abdominal Ultrasonography and a CT scan demonstrated an inflammatory mass in the lower left quadrant of the abdomen causing obstructive hydrou...

To cite: Ferreira C, Rodrigues M, Reis A, et al. BMJ Case Rep Published online: [please include Day Month Year] doi:10.1136/ bcr-2016-218168 DESCRIPTION A newborn (NB) boy was delivered at 39 weeks of gestation with 4160 g weight and an APGAR score of 8/9. The pregnancy was uneventful, with normal first and second trimester ultrasound. The third trimester ultrasound revealed an isolated right k...

background and purpose: posterior urethral valve (puv) is one of the most severe urinary tract anomalies presenting as antenatal hydronephrosis that could lead to severe dilatation and functional impairment of one or both kidneys. the aim of this study was to analyze our experience on patients with a diagnosis of puv. materials and methods: in this prospective study neonates with a diagnosis of...

The normal urinary collecting system develops from a single ureteric bud arising the mesonephric (Wolffian) duct. migrates to meet primitive kidney (metanephros), where it into system. Abnormalities in signaling pathways are thought result variety of variants, including two buds duct (complete duplication) or one that bifurcates during development (incomplete duplication).1Uetani N. Bertozzi K....

Background and purpose: Posterior urethral valve (PUV) is one of the most severe urinary tract anomalies presenting as antenatal hydronephrosis that could lead to severe dilatation and functional impairment of one or both kidneys. The aim of this study was to analyze our experience on patients with a diagnosis of PUV. Materials and Methods: In this prospective study neonates with a diagnosis of...