Familial Thoracic Aortic Aneurysm
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Familial Thoracic Aortic Aneurysm
Familial thoracic aortic aneurysm
SynonymsFamilial aortic dissection, cystic medial necrosis of aorta[1]
Cystic medial degeneration - movat - intermed mag.jpg
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 elastic fibers. The tunica adventitia (yellow at bottom of image) with vaso vasorum is also seen. Movat's stain.

Familial thoracic aortic aneurysm is an autosomal dominant[1] disorder of large arteries.

There is an association between familial thoracic aortic aneurysm, Marfan syndrome and massive baclofen overdose as well as other hereditary connective tissue disorders.

Signs and symptoms

A degenerative breakdown of collagen, elastin, and smooth muscle caused by aging contributes to weakening of the wall of the artery.[2]

In the aorta, this can result in the formation of a fusiform aneurysm. There is also increased risk of aortic dissection.

Genetics

Types include:

Type OMIM Gene Locus
AAT1 607086 11q23.3-q24
AAT4 132900 MYH11 16p
AAT6 611788 ACTA2 10q

Diagnosis

Treatment

Terminology

It is sometimes called "Erdheim cystic medial necrosis of aorta", after Jakob Erdheim.[3][4]

The term "cystic medial degeneration" is sometimes used instead of "cystic medial necrosis", because necrosis is not always found.

See also

References

  1. ^ a b Online Mendelian Inheritance in Man (OMIM) 607086
  2. ^ Wiesenfarth, John, http://www.emedicine.com/emerg/topic28.htm, October 4, 2005
  3. ^ synd/2409 at Who Named It?
  4. ^ J. Erdheim. Medionecrosis aortae idiopathica (cystica). Archiv für pathologische Anatomie und Physiologie und für klinische Medizin, 1929, 273: 454-479.

External links

Classification
External resources

  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.

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