Introduction And Importance: Axillary artery aneurysm is a rare anomaly in the vascular system of the upper extremity. Most of these aneurysms are false aneurysms and secondary to trauma. They can cause compressive symptoms as well as thromboembolic events leading to limb loss or even rupture as a life-threatening complication.

Case Presentation: A 33-year-old man came to the vascular clinic with the complaint of a pulsating mass in his axilla from 2 months ago. He had mild pain in his arm and the mass was palpable in his axillary fossa. It was pulsating and non-tender on touch. CT angiography revealed the aneurysm and the patient was treated surgically using reversed greater saphenous vein for replacing the aneurysmal segment of the artery.

Clinical Discussion: Axillary artery aneurysms may be true or false. Duplex scan and CT angiography can reliably differentiate them from each other. When the diagnosis is confirmed, open and endovascular approaches can be used to treat these vascular anomalies.

Conclusion: When a patient has an axillary mass, axillary artery aneurysm is one of the differential diagnoses and any clinician should keep this entity in his mind when approaching axillary masses.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10470309PMC
http://dx.doi.org/10.1016/j.ijscr.2023.108680DOI Listing

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