The Radiology Partners (RP) Interventional Radiology National Subspecialty Division (NSD) presents our newest Rad to Rad Learning case.
Peer Learning Opportunity
Classification of endoleaks drives critical management and follow-up.
Endoleaks

Type 1: Incomplete endograft seal and contrast tracking around the graft directly into the sac. Type 2: Retrograde flow of one or more branch arteries into the sac.
Shared to improve patient safety and healthcare delivery in the provision of radiology services. The circumstances and facts are changed, altered, or deidentified to preserve confidentiality. Privileges have not been waived.
Practical Insights 
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Type 1:
- Type 1a = proximal seal.
- Type 1b = distal seal.
- Both high-risk, requiring urgent repair!
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Type 2:
- Most common.
- Not urgent, but requires follow-up.
- For >5mm growth over 6 months, treat with embolization.
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Takeaway: type 1 endoleak is a critical finding!
The Interventional Radiology National Subspecialty Division (NSD) is part of RP’s Clinical Value Team, which works to elevate patient care and enhance value through innovation, collaboration and education. To advance this goal, our radiologists and advanced practice providers are committed to sharing peer learning as valuable reminders and insights about what we encounter in our day-to-day practice. Check back here and on X, LinkedIn and Instagram to see these common cases and our findings.
Visit the Clinical Resources page for more cases and to see what we’ve developed to enhance best practice recommendations, elevate image quality and patient care and update current standards throughout RP’s network of practices, all to deliver excellent radiology services to patients, referring clinicians and client partners.
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