Splenic artery pseudoaneurysm is rare and usually is a complication of pancreatitis or trauma. Average aneurysm diameter in our series of 10 patients was smaller than previously reported (1.7 cm vs 5.0 cm). Although conservative management has produced excellent results in some reports, from our experience and the literature, we recommend repair of all splenic artery pseudoaneurysms.

HAA are at definite risk for rupture (14%). Risk factors for rupture include multiple HAA and nonatherosclerotic origin. Patients with symptomatic aneurysms or any of these risk factors should be considered for intervention.

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SMA aneurysms are rare but appear to have a higher risk of rupture than previously reported. Male patients and patients with noncalcified aneurysms appear to have a greater risk of rupture. beta-Blockade may have some protective effect against aneurysm rupture. Intervention is reasonable in all patients at good operative risk with SMA aneurysms, considering the high rupture rate in our series.

True arterial aneurysms of the upper extremity distal to the axillary artery are rare and most commonly caused by blunt trauma. Fifty-eight percent of these lesions present with symptoms or complications. Thirty-three percent of asymptomatic lesions later become symptomatic. These factors combined with the minimal morbidity associated with repair suggest that operative repair should be routinely performed for these aneurysms. Revascularization can be performed selectively.

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ECCAs are uncommon and may be manifested with varying symptoms. All segments of the carotid artery are susceptible, although the internal is most commonly affected. Open surgical intervention was more common in patients with symptoms and with true aneurysms. Patients with pseudoaneurysms were more likely to undergo endovascular intervention. Nonoperative treatment is safe in selected patients.

CBT can be treated with minimal morbidity and mortality; however, the subgroup of patients with positive SDH mutations may represent a variant group of younger patients. Vascular surgeons should be aware of genetic testing to identify patients and family members who should undergo additional preoperative testing and monitoring for other paragangliomas. Concomitant lymph node dissection does not appear to add value in absence of clinic suspicion for malignancy.