<unk>  <unk> s) are defined as abnormal dilation of<unk>  aorta, mostly in the infrarenal part of aorta with extension to iliac arteries, up to more than 3 cm in the greatest diameter or dilatation of more than 50% of its diameter. Aneurysms are related to regional weakening of the vessels wall structure. Although<unk> s are more common in men than women, women with<unk> s have worse prognosis than men. The predisposing factors include male gender, age >75 years, prior vascular disease, hypertension, smoking, family history of cardiovascular disease and hypercholesterolemia. The incidence of<unk> s has continued to rise, of which they remain the leading cause of death in USA. The majority of<unk>  cases are usually asymptomatic and detected accidentally. Unruptured aneurysms may present mild<unk>  or back pain with pulsatile mass while ruptured aneurysms cause severe<unk>  or back pain, hypotension and shock and they are associated with high mortality.<unk> s are attributed to primary and secondary aneurysm. Primary aneurysms relate to defects in vessel wall (i.e. fibrillin deficiency or collagen III deficiency). Secondary aneurysms relate to turnover and pathological vessel wall remodeling. Imaging is vital for detection of<unk> s.<unk>  X-ray and ultrasound are performed to detect<unk> s.Ultrasound is simple, safe and inexpensive with sensitivity of 95% and specificity close to 100%. CT angiography is another imaging option which is the gold standard in evaluation of<unk>  size and extension of aneurysm, though it has high radiation doses.
Abdominal aortic aneurysm
Splenic artery aneurysm
Superior mesenteric artery syndrome
Splenic vein thrombosis
Splenic abscess
Splenic infarction
Postcholecystectomy syndrome
Renal vein thrombosis