1. Normal Lung Perfusion Scan with Extensive Thromboembolic Disease
Robert D. Brandstetter, M.D. F.C.C.P., Emanuel Naccarato, M.D., Robert J. Sperber, M.D., Hershel Ozick, M.D., Ira Novich, M.D., Walter Neglia, M.D., Alan Levitt, M.D. F.C.C.P. 
CHEST 
Volume 92, Issue 3, Pages (September 1987)
DOI: /chest
Copyright © 1987 The American College of Chest Physicians Terms and Conditions

2. FIGURE 1 Six-view lung perfusion scan with normal findings.
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Copyright © 1987 The American College of Chest Physicians Terms and Conditions

3. FIGURE 2
Gross photograph of dissected right pulmonary artery and branches demonstrates obstructing embolus of lower lobe branch (arrow) and remnants at points of attachment of reabsorbed emboli of the main pulmonary artery (V).
CHEST  , DOI: ( /chest )
Copyright © 1987 The American College of Chest Physicians Terms and Conditions

4. FIGURE 3
Hyalinized, old, pulmonary emboli obstructing pulmonary arterial branches (×100).
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Copyright © 1987 The American College of Chest Physicians Terms and Conditions