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Left renal vein compression syndrome ("nutcracker phenomenon").

C M Stassen¹, E H Weil, B K Janevski

¹Department of Radiology, University Hospital Maastricht, State University of Limburg, The Netherlands.

Rofo : Fortschritte Auf Dem Gebiete Der Rontgenstrahlen Und Der Nuklearmedizin

|June 1, 1989

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This study presents cases of varicocele and ureter varices caused by the nutcracker phenomenon, where the left renal vein is compressed. It discusses clinical signs and diagnostic imaging methods for this rare vascular condition.

Area of Science:

Vascular Surgery
Radiology
Urology

Background:

Nutcracker phenomenon (NCP) involves the compression of the left renal vein (LRV) between the superior mesenteric artery (SMA) and the aorta.
This compression can lead to venous hypertension in the left gonadal vein, causing scrotal varicocele.
NCP can also cause ureter varices and hematuria due to venous congestion in the left ureter.

Purpose of the Study:

To present clinical cases of nutcracker phenomenon.
To discuss the clinical presentation and diagnostic imaging of NCP.
To highlight the association between NCP, varicocele, and ureter varices.

Main Methods:

Case series presentation.
Review of clinical signs and symptoms.

Related Experiment Videos

Discussion of radiological diagnostic methods, including imaging modalities used to diagnose NCP and its complications.

Main Results:

Four cases of left-sided scrotal varicocele were diagnosed.
One case presented with ureter varices and left-sided hematuria.
All cases were attributed to nutcracker phenomenon (LRV compression).

Conclusions:

Nutcracker phenomenon is a rare cause of scrotal varicocele and ureter varices.
Clinical diagnosis requires careful evaluation of symptoms.
Radiological imaging is crucial for confirming the diagnosis and understanding the vascular anatomy.