Abnormal pulmonary vessels in a patient with chest pain.

'Assistant Professor of Radiology. "Professor of Radiology, Boston University School of Medicine, University Hospital, Department of Radiolo , Boston. Reprint requests: Dr. Ferris, Department of ~ a d i z g y . UnC versity Hospital, 750 Harrison Avenue, Boston 021 18 were no apparent telangiectases. The chest roentgenograms showed no abnormalities. Right heart strain was indicated by electrocardiogram. Pulmonary perfusion scan demonstrated a perfusion defect at the right base, while the xenon ventilation scan was negative. Blood gas values: Poz 87, Pcm 20, serum bicarbonate of 13 mEq/L and pH 7.43; hemoglobin and hematocrit were 12.6 grams and 37 percent respectively. At pulmonary arteriography a normal main pulmonary artery pressure (3018 with a mean of 15 mm Hg ) was recorded.