Rupture of vasa vasorum and intramural hematoma of the aorta: a changing paradigm

Abstract

Rupture of vasa vasorum and intramural hematoma of the aorta: a changing paradigmRuptura dos vasa vasorum e hematoma intramural da aorta: um paradigma em mudança Jan Janzen J. vasc. bras. vol.9 no.2 Porto Alegre June 2010Dear ladies and gentlemen I would like to congratulate Adamastor Humberto Pereira for his excellent review about rupture of vasa vasorum in 2010.From the vascular histopathologist standpoint of view it is worth emphasising the role of vasa vasorum in acute dissection with and/or without aneurysms.We found lightmicroscipally in 46 of 171 cases a rupture of vasa vasorum as the cause of dissection (Figure 1 and 2) 1,2 . Furthermore I would like to remark that vasa vasorum in aneurysms of the aorta ascendens presenting a wide morphological spectrum. In atherosclerotic aneurysms nonstenotic vasa vasorum were observed. In contrast to these findings non-atherosclerotic aneurysms showed concentric and excentric stenosis causing leiomyomatous hyperplasia 3 . References RESPOSTA DO AUTORCaro Doutor Jan Jansen, Acuso o recebimento da carta enviada ao Jornal Vascular Brasileiro (JVB) sobre nosso artigo "Ruptura dos vasa vasorum e hematoma intramural da aorta: um paradigma em mudança" Agradecemos os comentários e as