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< memo 中心性漿液性網脈絡膜炎 | メイン | memo Protein-losing ... >
Inflammatory abdominal aortic aneurysm
JAMA Volume 297(4), 24/31 January 2007, p 395–400
○5% to 10% of all cases of AAA
○"inflammatory AAA": Br J Surg. 1972;59:609–614
the triad of gross pathologic findings in inflammatory AAA： (1) a thickened aneurysm wall（0.5 to 3.0 cm）
(2) intense perianeurysmal and retroperitoneal fibrosis
(3) extensive adhesions involving surrounding organs
○“chronic periaortitis.” : (1) inflammatory AAA, (2) idiopathic retroperitoneal fibrosis, and (3) a combination of the 2 disorders.
○Differential Diagnosis
inflammatory AAA＝AAA with intense periaortic and retroperitoneal fibrosis and inflammation
DDx
・Systemic vasculitis.
Takayasu aortitis
Temporal arteritis
Cogan syndrome
・Other nonrheumatic diseases can cause aortic aneurysms but without periaortitis)
Marfan syndrome
Ehlers-Danlos syndrome
cystic medial necrosis
infections (salmonella, syphilis)
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