Cystic medial necrosis: Difference between revisions
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In the aorta,this can result in the formation of a fusiform [[aneurysm]]. | In the aorta,this can result in the formation of a fusiform [[aneurysm]]. | ||
==Pathology == | ==Pathology == | ||
Cystic media necrosis is a degenerative breakdown of [[collagen]], [[elastin]], and [[smooth muscle]] caused by aging which contributes to weakening of the wall of the artery. In the aorta, this can result in the formation of a fusiform [[aneurysm]], and a subsequent risk of [[aortic dissection]]. | |||
===Genetics=== | ===Genetics=== | ||
Genetic variants include: | Genetic variants include: | ||
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==Natural History, Complications, and Prognosis == | ==Natural History, Complications, and Prognosis == | ||
Cystic medial necrosis is associated with an increased risk of [[aortic dissection]]. | Cystic medial necrosis is associated with an increased risk of [[aortic dissection]]. | ||
==References== | ==References== | ||
Revision as of 19:04, 21 October 2012
| Cystic medial necrosis | |
| ICD-9 | 441.00 |
|---|---|
| OMIM | 607086 |
| DiseasesDB | 30073 |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Synonyms and keywords: cystic medial degeneration; familial thoracic aortic aneurysm; familial aortic dissection; cystic medial necrosis of aorta [1]; it is sometimes called "Erdheim's cystic medial necrosis", after Jakob Erdheim[2][3]; the term cystic medial degeneration is sometimes used instead of cystic medial necrosis, because necrosis is not always found
Overview
Cystic medial necrosis is an autosomal dominant[1] disorder of large arteries. A degenerative breakdown of collagen, elastin, and smooth muscle caused by aging contribute to weakening of the wall of the artery.
In the aorta,this can result in the formation of a fusiform aneurysm.
Pathology
Cystic media necrosis is a degenerative breakdown of collagen, elastin, and smooth muscle caused by aging which contributes to weakening of the wall of the artery. In the aorta, this can result in the formation of a fusiform aneurysm, and a subsequent risk of aortic dissection.
Genetics
Genetic variants include:
| Type | OMIM | Gene | Locus |
|---|---|---|---|
| AAT1 | 607086 | 11q23.3-q24 | |
| AAT4 | 132900 | MYH11 | 16p |
| AAT6 | 611788 | ACTA2 | 10q |
Associated Conditions
There is an association between cystic medial necrosis and Marfan syndrome.
Natural History, Complications, and Prognosis
Cystic medial necrosis is associated with an increased risk of aortic dissection.
References
- ↑ 1.0 1.1 Online Mendelian Inheritance in Man (OMIM) 607086
- ↑ Template:WhoNamedIt
- ↑ J. Erdheim. Medionecrosis aortae idiopathica (cystica). Archiv für pathologische Anatomie und Physiologie und für klinische Medizin, 1929, 273: 454-479.