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Histologic abnormalities of the ascending aorta and pulmonary trunk in patients with bicuspid aortic valve disease: Clinical relevance to the ross procedure 

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Presentation on theme: "Histologic abnormalities of the ascending aorta and pulmonary trunk in patients with bicuspid aortic valve disease: Clinical relevance to the ross procedure "— Presentation transcript:

1 Histologic abnormalities of the ascending aorta and pulmonary trunk in patients with bicuspid aortic valve disease: Clinical relevance to the ross procedure  Mauro de Sa, MDa, Yaron Moshkovitz, MDa, Jagdish Butany, MDb, Tirone E. David, MDa  The Journal of Thoracic and Cardiovascular Surgery  Volume 118, Issue 4, Pages (October 1999) DOI: /S (99) Copyright © 1999 Mosby, Inc. Terms and Conditions

2 Fig. 1 A , Histologic features of a transverse section of ascending aorta, from a 54-year-old patient with a normal trileaflet aortic valve. Note the circumferential arrangement of smooth muscle cells and elastic tissue plates. Small foci of accumulation of collagen (pale yellow white areas ) and changes in the smooth muscle cell orientation (arrow ). There are no intimal changes. (Movat pentachrome stains; original magnification, ×100.) B , Histologic features of the ascending aorta from a 33-year-old patient with bicuspid aortic valve disease. Note the significant medial destruction, accumulation of mucoid material (arrow ; pool of mucopolysaccharide). There is marked fragmentation of elastic tissue, and there are large areas of loss of normal medial muscle. (Movat pentachrome stains; original magnification, ×100.) The Journal of Thoracic and Cardiovascular Surgery  , DOI: ( /S (99) ) Copyright © 1999 Mosby, Inc. Terms and Conditions

3 Fig. 2 A , Normal histologic structure of pulmonary trunk from a 42-year-old patient with tricuspid aortic valve disease. The medial layer shows a greater degree of interruption and fragmentation of elastic tissue plates than is seen in the aorta. Elastic tissue and smooth muscle cells run circumferentially. Small scattered areas of collagen (pale yellow ) can be seen. The medial thickness is about 50% to 60% of that of a normal aorta. (Movat pentachrome; original magnification, ×100.) B , Histologic structure of pulmonary trunk from a 40-year-old patient with bicuspid aortic valve disease. Note disorganized media, with large areas of pools of mucopolysaccharides (arrow; pale blue ) and of collagen deposition (pale yellow ). There is also smooth muscle cell disorientation and fragmentation of elastic tissue. (Movat pentachrome; original magnification, ×100.) The Journal of Thoracic and Cardiovascular Surgery  , DOI: ( /S (99) ) Copyright © 1999 Mosby, Inc. Terms and Conditions

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