DILATED LOCALISED SEGMENT OF ARTERIAL SYSTEM /ANEURYSM
ANEURYSM INTRODUCTION: It is a dilatation of localized segment of arterial system . true aneurysm -contains all three layers of artery false aneurysm -contains single layer of fibrous tissue wall of sac and it usually occurs after trauma Sites: Aorta Femoral Popliteal Subclavian Berry aneurysm -multiple aneurysm occurring in circle of Willis Abdominal aneurysm commonest aortic aneurysm Peripheral aneurysm less common compared to cavity aneurysm Types: Fusiform Saccular Dissecting Etiology : Atherosclerosis (to learn Etiology of atherosclerosis ) Syphillis Traumatic Collagen disease like Marfan syndrome Dissecting aneurysm -hypertension Trauma Cystic medial necrosis CLINICAL FEATURES: Swelling -pulsatile, Smooth, Soft, Warm , Palpitation-thrill, Auscultation -bruit Altered sensation due to compr...