Risk factors for an<unk>  include diabetes, obesity, hypertension, tobacco use, alcoholism, high cholesterol, copper deficiency, increasing age, and tertiary syphilis infection. Connective tissue disorders such as Loeys-Dietz syndrome, Marfan syndrome, and certain forms of Ehlers-Danlos syndrome are also associated with<unk> s.<unk> s, dissections, and ruptures in individuals under 40 years of age are a major diagnostic criteria of the vascular form of Ehlers-Danlos syndrome (vEDS). Specific infective causes associated with<unk>  include: * Advanced syphilis infection resulting in syphilitic aortitis and an aortic<unk>  * Tuberculosis, causing Rasmussen's<unk> s * Brain infections, causing infectious intracranial<unk> s A minority of<unk> s are associated with genetic factors. Examples include: * Berry<unk> s of the anterior communicating artery of the circle of Willis, associated with autosomal dominant polycystic kidney disease * Familial thoracic aortic<unk> s * Cirsoid<unk> s, secondary to congenital arteriovenous malformations
Aneurysm
Baker's cyst
Coma
Angioma
Hematoma
Vascular tumor
Gliosis
Pseudoaneurysm