Medical Blog

Arteriovenous Fistulas
Introduction
Background

Vascular birthmarks encompass a group of vascular disorders that for a long time included conditions of various presentation and etiology. In 1996, the Workshop of the International Society for the Study of Vascular Anomalies (ISSVA), with a subsequent modification, in 1998 presented a new classification of this vast group of conditions dividing them into vascular tumors and vascular malformations.1 This allowed for more systematic classification and management with less confusion in diagnosis of these often complex lesions.
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Aortoiliac Occlusive Disease
Introduction

In patients with peripheral arterial disease, obstructing plaques caused by atherosclerotic occlusive disease commonly occur in the infrarenal aorta and iliac arteries. Atherosclerotic plaques may induce symptoms either by obstructing blood flow or by breaking apart and embolizing atherosclerotic and/or thrombotic debris to more distal blood vessels. If the plaques are large enough to impinge on the arterial lumen, reduction of blood flow to the extremities occurs. Several risk factors exist for development of the arterial lesions, and recognition of these factors enables physicians to prescribe nonoperative treatment that may alleviate symptoms as well as prolong life. Read more…

Angiofibroma
Introduction

Juvenile nasopharyngeal angiofibroma (JNA) is one of the most common benign nasal cavity tumors of adolescence. It often acts in a malignant manner by eroding into the surrounding sinuses, orbit, or cranial vault.
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Abdominal Aortic Aneurysm Introduction

Abdominal aortic aneurysms (AAAs) represent a degenerative process of the abdominal aorta that is often attributed to atherosclerosis; however, the exact cause is not known. A familiar clustering of AAAs has been noted in 15-25% of patients undergoing repair of the problem. Degenerative aneurysms account for more than 90% of all infrarenal AAAs. Other causes include infection, cystic medial necrosis, arteritis, trauma, inherited connective-tissue disorders, and anastomotic disruption. Read more…