PATHOLOGY OF THE VESSELS OF THE PULMONARY CIRCULATION

Abstract

CONTENTS Anatomic considerations Normal histology of the pulmonary vessels Stem of the pulmonary artery Large branches Small muscular branches Arterioles and venules Capillaries Veins Pathologic physiology Action of drugs: epinephrine, acetylcholine, histamine, pituitary extract and digitalis Emphysema Fibrosis of the lungs Pleural adhesions Heart failure Other functions of the lungs Diseases of the pulmonary vessels Historical introduction Scheme of present investigation Classification of diseases of the pulmonary vessels Secondary pulmonary vascular sclerosis Classification of the conditions Incidence Gross appearances Dilatation Atherosclerosis Distribution of sclerosis Microscopic changes Grading of lesions Stem of the pulmonary artery Large elastic arteries Small muscular arteries Arterioles and venules Capillaries Small veins Large intrapulmonary veins Main extrapulmonary pulmonary veins Muscularity of veins Systemic vessels Distribution of sclerosis Changes in the heart Etiology of secondary sclerosis Symptoms Primary pulmonary vascular sclerosis Incidence Gross appearances Microscopic changes Symptoms Diagnosis Pathogenesis Nature of vascular changes Relationship to right