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OC-3 Radio-imaging aspects in reno-urinary congenital obstructive pathology
  1. Oana-Maria Rizea,
  2. Cristina Al. Nicolae,
  3. Ioana G Lupescu
  1. Fundeni Clinical Institute, Bucharest

Abstract

Learning objective Listing, presenting and illustration of the most important entities related to congenital obstructive pathology concerning reno-urinary system.

Material and methods We have reviewed our archives in the last ten years, looking for the most interesting cases of congenital obstructive reno-urinary pathology.

Each case has been explored individually, but each of them has had, as a first method, as well as the follow-up method, ultrasound. Using information obtained by ultrasound, the other methods used in performing an appropriate diagnosis were conventional technics (plain film, intravenous urography +/voiding cystography) or advanced (computer tomography +/- CT urography, magnetic resonance imaging).

Results We have found ureteropelvic junction syndrome, retrocaval ureter, congenital megaureter with stenosis, ureterocele, posterior urethral valve etc. Some of the cases have been associated pathology like renal agenesis.

The most common cause of congenital obstruction was obstruction of pyeloureteral junction.

We have analysed advantages and disadvantages of each of the radiological modalities/methods, in order to choose the most convening strategy – merging low radiation exposure with its essential diagnostic value, respecting ALARA principles. Imaging is essential in staging and follow-up of the UHN witch can vary from mild to severe and may affect the kidney’s function.

Conclusions The paediatric patient management (conservative or surgery) and follow-up will be established depending on aetiology, its grade, additional pathology and clinical features.

Imaging has an important role in initial evaluation and follow-up of urinary tract malformations and knowing the diagnostic value of different imaging modalities and its limitation is mandatory in evaluation of paediatric patients.

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