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Related Concept Videos

Imaging Studies VI: Voiding Cystourethrography and Cystography01:22

Imaging Studies VI: Voiding Cystourethrography and Cystography

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Voiding Cystourethrography (VCUG) and Cystography are specialized radiographic procedures used to examine the structure and function of the bladder and urethra.Voiding Cystourethrography (VCUG)A Voiding Cystourethrogram (VCUG) is a diagnostic imaging procedure that assesses the anatomy and function of the lower urinary tract. It focuses on the bladder, bladder neck, and urethra, helping detect abnormalities such as vesicoureteral reflux (VUR)—the backward or reverse flow of urine into the...
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Chyluria: non-enhanced MR lymphography.

Alexandre Sabbah1, Cedi Koumako1, Sanaâ El Mouhadi1

  • 1Department of Radiology, Saint-Antoine Hospital, Assistance Publique - Hôpitaux de Paris (APHP) and Sorbonne University, 184 Rue du Faubourg Saint-Antoine, 75012, Paris, France.

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|July 5, 2023
PubMed
Summary

Chyluria, milky urine caused by lymphatic-urinary tract connection, is diagnosed using MR lymphography. This technique identifies parasitic or non-parasitic causes and the communication site, aiding treatment decisions.

Keywords:
ChyluriaFilariasisLymphaticsMR imagingMR lymphography

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Area of Science:

  • Radiology
  • Lymphatic Imaging
  • Urology

Background:

  • Chyluria is a rare condition where abdominal lymphatics abnormally connect to the urinary tract, causing milky urine.
  • Parasitic infections (Wuchereria bancrofti) are common globally, while non-parasitic causes prevail in Europe and North America.
  • Accurate diagnosis of the uro-lymphatic communication is crucial for effective therapeutic management.

Purpose of the Study:

  • To review abdominal lymphatic diseases causing chyluria.
  • To present the technique and findings of non-enhanced MR lymphography for uro-lymphatic fistulae.
  • To assist radiologists in identifying and classifying these fistulae.

Main Methods:

  • Utilizing non-enhanced MR lymphography with a 3D high-resolution fast-recovery fast spin-echo sequence.
  • Comparing the technique to 3D MR cholangiopancreatography for imaging lymphatic channels.
  • Analyzing images to identify the cause and location of lymphatic-urinary tract communication.

Main Results:

  • MR lymphography effectively demonstrates dilated lymphatics in parasitic chyluria.
  • Channel-type lymphatic malformations are identified in non-parasitic chyluria.
  • Associated abnormalities like thoracic or soft tissue malformations may also be visualized.

Conclusions:

  • Non-enhanced MR lymphography is a valuable non-invasive tool for diagnosing chyluria.
  • It enables precise identification and categorization of uro-lymphatic fistulae.
  • This facilitates targeted therapeutic strategies for chyluria patients.