PATHOLOGY OF THE VESSELS OF THE PULMONARY CIRCULATION

Abstract

SECONDARY PULMONARY VASCULAR SCLEROSIS DISTRIBUTION OF SCLEROSIS IN THE PULMONARY VASCULAR BED It now seems desirable to discuss the distribution of sclerosis in the pulmonary vascular bed in the various etiologic groups. Tables 22 and 23 and figures 9 to 16 summarize the data obtained by averaging the degree of sclerosis noted in each etiologic group in the various divisions of the pulmonary vascular bed. Though this may be of some value in making a comparison of the various groups, it must be emphasized that since the grading of the sclerosis was according to arbitrary criteria, which necessarily differed with each type of vessel examined, the tables and figures show only in a general way the variations noted in the degree of sclerosis in the different divisions of the pulmonary vascular bed. In the "no cause" group there were, if the case of primary sclerosis in a boy of 11