Evidence Checklist: Aortic Aneurysm

CT angiography or MRA documenting aneurysm size and locationCritical

CT-A or MRA imaging is the definitive study — it documents aneurysm location (abdominal vs. thoracic), maximum diameter, and involvement of branch vessels. Size is critical: AAA over 5 cm or TAA over 5.5 cm may be rated at 100%.

Vascular surgeon evaluationCritical

A vascular surgeon evaluation documenting the aneurysm characteristics, surgical risk, and recommended management plan.

Nexus opinion linking aneurysm to service ("at least as likely as not")Critical

A medical opinion connecting the aneurysm to service-related hypertension, atherosclerosis (Agent Orange), or other in-service vascular disease.

Serial surveillance imaging showing growth rate

Sequential CT or ultrasound studies documenting the rate of aneurysm growth over time, which affects surgical timing and supports higher ratings.

Surgical repair records (open or EVAR, if performed)

Operative records for open surgical repair or endovascular aneurysm repair (EVAR), including post-operative imaging confirming repair status.

Documentation of pain or pressure symptoms

Medical records or personal statement documenting back pain, abdominal pain, or pressure symptoms related to the aneurysm.

Buddy statement from spouse, family, or fellow service member

A written statement from someone who can describe observable symptoms and how your condition affects daily life.

Completed DBQ Artery and Vein ConditionsCritical

Standardized form capturing aneurysm size, location, imaging findings, and functional limitations.

Service treatment records (STRs)Critical

Military medical records showing in-service treatment, complaints, or injuries related to this condition.