Primary Pulmonary Hypertension With Obstructive Venous Lesions

There are very few recorded examples of disease of the pulmonary veins in primary pulmonary hypertension. In 1941 Brill and Krygier described a single case of primary pulmonary hypertension and collected a further 19 that had been previously published: in only one of these were abnor- malities described in the veins-an instance reported by