Localized renal artery dissection

Case contributed by Dr Chris O'Donnell


Presentation with headaches. Found to have severe hypertension requiring maximal medical treatment. Duplex ultrasound suggests high grade renal artery stenosis. CTA for confirmation.

Patient Data

Age: 40
Gender: Male
Annotated image

Ectatic right renal artery with a localized luminal "flap" ~ 2.5cm from the origin, consistent with dissection.  Left renal artery is normal.

Case Discussion

The right renal artery shows an underlying abnormality of ectasia and slight luminal irregularity.

Differential diagnosis is a collagen disorder (unlikely given that all other vessels are normal), vasculitis and fibromuscular dysplasia (although the vessel does not have the typical "beaded" appearance).  In the absence of trauma, all three conditions could be associated with spontaneous dissection.

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Case information

rID: 41977
Published: 30th Dec 2015
Last edited: 29th Dec 2019
Inclusion in quiz mode: Included