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'''Thromboangiitis obliterans''', abbreviated '''TAO''', is a rare [[vascular disease]] characterized by recurrent thrombosis. It primarily afflicts young smokers and is also known as '''Buerger disease'''. | |||
It should '''not''' be confused with '''Berger disease''' ([[IgA nephropathy]]). | |||
==General== | |||
*Strong association with smoking.<ref>{{Cite journal | last1 = Highlander | first1 = P. | last2 = Southerland | first2 = CC. | last3 = VonHerbulis | first3 = E. | last4 = Gonzalez | first4 = A. | title = Buerger disease (thromboangiitis obliterans): a clinical diagnosis. | journal = Adv Skin Wound Care | volume = 24 | issue = 1 | pages = 15-7 | month = Jan | year = 2011 | doi = 10.1097/01.ASW.0000392923.37852.43 | PMID = 21173586 }}</ref> | |||
*Clinical-radiologic diagnosis.<ref name=pmid20534945/> | |||
Typical symptoms/signs - progression:<ref name=pmid22284771/> | |||
*Intermittent claudication -> ulcers -> [[gangrene]] -> [[amputation]]. | |||
Treatment: | |||
*Stop smoking.<ref name=pmid22284771>{{Cite journal | last1 = Dargon | first1 = PT. | last2 = Landry | first2 = GJ. | title = Buerger's disease. | journal = Ann Vasc Surg | volume = 26 | issue = 6 | pages = 871-80 | month = Aug | year = 2012 | doi = 10.1016/j.avsg.2011.11.005 | PMID = 22284771 }}</ref> | |||
===Formal clinical criteria=== | |||
====Simple==== | |||
All of the following - as per ''Shionoya'':<ref name=pmid16722538>{{Cite journal | last1 = Arkkila | first1 = PE. | title = Thromboangiitis obliterans (Buerger's disease). | journal = Orphanet J Rare Dis | volume = 1 | issue = | pages = 14 | month = | year = 2006 | doi = 10.1186/1750-1172-1-14 | PMID = 16722538 | URL = http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1523324/ | PMC = 1523324 }}</ref> | |||
*Smoking. | |||
**No other atherosclerosis risk factors. | |||
*Onset < 50 years old. | |||
*Infrapopliteal arterial occlusions. | |||
*Arm involvement ''or'' phlebitis migrans; | |||
====Complicated==== | |||
All of the following - as per ''Olin'':<ref name=pmid10995867>{{Cite journal | last1 = Olin | first1 = JW. | title = Thromboangiitis obliterans (Buerger's disease). | journal = N Engl J Med | volume = 343 | issue = 12 | pages = 864-9 | month = Sep | year = 2000 | doi = 10.1056/NEJM200009213431207 | PMID = 10995867 | URL = http://www.nejm.org/doi/full/10.1056/NEJM200009213431207 }}</ref> | |||
*Less than 45 years old. | |||
*Current or recent tobacco use. | |||
*Sign or symptoms of distal extremity ischemia (claudication, pain at rest, ulcers, gangrene). | |||
*Arteriographic findings consistent with the disease. | |||
Exclusions - with lab tests:<ref name=pmid16722538/> | |||
*Autoimmune disease. | |||
*Hypercoagulable state. | |||
*[[Diabetes mellitus]]. | |||
*Radiographic findings suggestive of proximal emboli source (echocardiography, arteriography). | |||
==Gross== | |||
*Afflicts small and medium-sized vessels of the extremities. | |||
*Corkscrew vessels - seen on angiography.<ref name=pmid20534945>{{Cite journal | last1 = Fujii | first1 = Y. | last2 = Soga | first2 = J. | last3 = Nakamura | first3 = S. | last4 = Hidaka | first4 = T. | last5 = Hata | first5 = T. | last6 = Idei | first6 = N. | last7 = Fujimura | first7 = N. | last8 = Nishioka | first8 = K. | last9 = Chayama | first9 = K. | title = Classification of corkscrew collaterals in thromboangiitis obliterans (Buerger's disease): relationship between corkscrew type and prevalence of ischemic ulcers. | journal = Circ J | volume = 74 | issue = 8 | pages = 1684-8 | month = Aug | year = 2010 | doi = | PMID = 20534945 }}</ref> | |||
==Microscopic== | |||
Features:<ref name=pmid16892557>{{Cite journal | last1 = Kurata | first1 = A. | last2 = Schulz | first2 = A. | last3 = Franke | first3 = FE. | title = Reappraisal of thromboangiitis obliterans--a pathological contribution. | journal = Verh Dtsch Ges Pathol | volume = 88 | issue = | pages = 231-6 | month = | year = 2004 | doi = | PMID = 16892557 }}</ref> | |||
*Acute inflammation: | |||
** Endarteritis - neutrophils at the internal elastic lamina (IEL). | |||
** Periarteritis - neutrophils around the arteries. | |||
*Luminal narrowing due to thrombi.<ref name=pmid16722538/> | |||
**Organizing thrombi = thickened tunica intima. | |||
**Vessels may be re-canalized. | |||
Notes: | |||
* Typically segmental.<ref name=pmid22284771/> | |||
DDx: | |||
*[[Peripheral vascular disease]] ([[atherosclerosis]]) - typically lacks the acute inflammation around the IEL and around the vessels. | |||
*[[Vasculitis]] - have [[fibrinoid necrosis]]. | |||
Images: | |||
*[http://www.surgicalpathologyatlas.com/glfusion/mediagallery/media.php?f=0&sort=0&s=2008080217555643 Buerger's disease (surgicalpathologyatlas.com)]. | |||
==Sign out== | |||
<pre> | |||
MIDDLE FINGER DISTAL PHALANX, LEFT, AMPUTATION: | |||
- ENDARTERITIS, PERIARTERITIS, INTRAVASCULAR THROMBI AND GANGRENE CONSISTENT WITH | |||
THROMBOANGIITIS OBLITERANS (BUERGER'S DISEASE). | |||
</pre> | |||
==See also== | |||
*[[Vascular disease]]. | |||
==References== | |||
{{Reflist|2}} | |||
[[Category:Diagnosis]] | [[Category:Diagnosis]] | ||
[[Category:Cardiovascular pathology]] |
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