Clinicopathological study of primary obstructive megaureter

Background: Megaureter is a non-specific term implying a spectrum of anomalies associated with pathologically excessive ureteral diameter. It implies no particular unifying pathophysiologic principles but merely groups together a spectrum of anomalies associated with increased ureteral diameter. To analyse the clinical profile and various investigation modalities used in diagnosing primary obstructive megaureter.Methods: This prospective study was conducted in March 2017 to August 2019 at the Institute of Child Health and Hospital for Children (ICH and HC), Egmore, Chennai.Results: The most common presentation was febrile urinary tract infection, second most presentation was asymptomatic patients, on post-natal evaluation of antenatally diagnosed cases. The most common finding on the antenatal scan is uretero-hydronephrosis. Maximum incidence of ureteric size - between 1 and 1.5 cms. 13 patients underwent surgery after an initial period of observation from the time of presentation. These patients belong to the period of infancy. The coincidence of circular muscle hyperplasia and longitudinal muscle hypoplasia was noted in 18 patients.Conclusions: In this study, patients presented during infancy were initially observed, prior to surgical intervention. But those patients presented beyond infancy were evaluated and intervened surgically during the same admission. Cohen’s uretero-neocystostomy through intra-vesical approach is the surgical procedure of choice, in the majority of the cases, in this study.

A study of primary megaureter Our experience

Amongst the congenital anomalies of the Ureter, Megaureter is one of the commonest, next only to the various types of duplications. Though every dilated and large ureter can be described as Megaureter, Primary obstructive megaureter is the entity wherein the dilated ureter is associated with a short, juxtavesical, narrow, adynamic segment and is not associated with reflux. This is a study of 8 patients who presented with primary obstructive megaureter in the department of urology, Osmania General Hospital, Afzalgunj during 2013-2015. Apart from the clinical presentation of this disorder, the modalities of arriving at the Diagnosis, the associated complications and the management are discussed

Unilateral ureteric stone associated with gross hydronephrosis and kidney shrinkage: a cadaveric report / 대한해부학회지

Ureteric stones are a common cause of obstruction of the urinary tract, usually presenting with characteristic signs and symptoms, such as acute ureteric colic and hematuria. Occasionally, stones may present with non-specific symptoms such as low back pain and remain unidentified, leading to stone growth, chronic ureteric obstruction and complications such as hydronephrosis and renal damage. Here, we report a large ureteric stone in a cadaver with complete obstruction at the left ureterovesical junction, resulting in severe dilatation of the left ureter and renal pelvis.

Infrequent Voiding Induced Acute Pyelonephritis in a Thirteen-Year Old Girl

Infrequent voiding is defined as two or less micturitions in a day without organic causes. It can lead to bladder capacity enlargement and increase in the volume of residual urine and as a consequence it may produce recurrent urinary tract infections(UTI) and or renal damages. We report a case of acute pyelonephritis due to infrequent voiding in a 13 year old girl. The imaging studies revealed floating debris in the bladder on VCUG and dilated ureter on ultrasonography, and parenchymal defects on 99mTc DMSA scan.