1. Pulmonary Embolism in the Patient with Chronic Obstructive Pulmonary Disease 
Michael Lippmann, M.D., F.C.C.P., Alan Fein, M.D., F.C.C.P 
CHEST 
Volume 79, Issue 1, Pages (January 1981)
DOI: /chest
Copyright © 1981 The American College of Chest Physicians Terms and Conditions

2. Figure 1
RA chest roentgenogram in case 1 at the time of acute symptoms. The left pulmonary artery is prominent but unchanged from previous examination.
CHEST  , 39-42DOI: ( /chest )
Copyright © 1981 The American College of Chest Physicians Terms and Conditions

3. Figure 2
Posterior view of perfusion lung scan obtained in case 1 showing multiple bilateral perfusion defects (arrows). Ventilation sign, not reproduced, showed unmatched defects.
CHEST  , 39-42DOI: ( /chest )
Copyright © 1981 The American College of Chest Physicians Terms and Conditions

4. Figure 3
Anterior view of pulmonary arteriogram (case 1) showing large filling defect in right main pulmonary artery (arrow).
CHEST  , 39-42DOI: ( /chest )
Copyright © 1981 The American College of Chest Physicians Terms and Conditions

5. Figure 4
Posterior view of perfusion lung scan obtained ten days after institution of heparin therapy. Significant resolution of filling defect is demonstrated.
CHEST  , 39-42DOI: ( /chest )
Copyright © 1981 The American College of Chest Physicians Terms and Conditions