Development and distribution of gross atherosclerotic lesions at cervical carotid bifurcation

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Abstract
A study of 123 specimens of the cervical carotid bifurcation area is presented. Gross atherosclerotic lesions occur in this area by the 3d decade and progress with age. The point of bifurcation is first involved, with subsequent extension of the lesion into the proximal portion of the internal and the distal portion of the common carotid. The gross atherosclerotic lesion commonly remains restricted to the zone of bifurcation. The common carotid proximal to the bifurcation and the internal carotid distal to the bifurcation show a marked increase in size with advancing age. Enlargement is most marked in the proximal internal carotid. The angle of carotid bifurcation frequently widens markedly, usually bilaterally. No tendency was found for changes in the bifurcation area to predominate on either side.

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