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Familial thoracic aortic aneurysm and aortic dissection is a very rare vascular genetic disorder, it's characterized by recurrent thoracic aortic aneurysms and aortic dissections within a family, these mentioned complications affect one or more aortic segments without any other disease being associated with them.
Familial thoracic aortic aneurysm; Other names: Familial aortic dissection, cystic medial necrosis of aorta [1] Micrograph showing cystic medial degeneration, the histologic correlate of familial thoracic aortic aneurysms. The image shows abundant basophilic ground substance in the tunica media (blue at top of image) and disruption of the ...
A diagnosis is based on family history and a combination of major and minor indicators of the disorder, rare in the general population, that occur in one individual – for example: four skeletal signs with one or more signs in another body system such as ocular and cardiovascular in one individual.
Other risk factors that contributes to the formation of aneurysm are: cigarette smoking, hypertension, female gender, family history of cerebral aneurysm, infection, and trauma. Damage to structural integrity of the arterial wall by shear stress causes an inflammatory response with the recruitment of T cells, macrophages, and mast cells.
Familial aortic dissection or FAD refers to the splitting of the wall of the aorta in either the arch, ascending or descending portions. FAD is thought to be passed down as an autosomal dominant disease and once inherited will result in dissection of the aorta, and dissecting aneurysm of the aorta, or rarely aortic or arterial dilation at a young age.
Loeys–Dietz syndrome (LDS) is an autosomal dominant genetic connective tissue disorder. It has features similar to Marfan syndrome and Ehlers–Danlos syndrome. [3] [4] [5] The disorder is marked by aneurysms in the aorta, often in children, and the aorta may also undergo sudden dissection in the weakened layers of the wall of the aorta.
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As the AMA decided in April 1960, the Current Medical Terminology (CMT) handbook was first published in June 1962 – 1963 to standardize terminology of the Standard Nomenclature of Diseases and Operations (SNDO) and International Classification of Diseases (ICD), and for the analysis of patient records, and was aided by an IBM computer. [22]