1. Pulmonary Hypertension and Human Immunodeficiency Virus Infection
Peter G. Polos, M.D., Ph.D., Douglas Wolfe, M.D., Russell A. Harley, M.D., F.C.C.P., Charlie Strange, M.D., F.C.C.P., Steven A. Sahn, M.D., F.C.C.P. 
CHEST 
Volume 101, Issue 2, Pages (February 1992)
DOI: /chest
Copyright © 1992 The American College of Chest Physicians Terms and Conditions

2. FIGURE 1
Plexiform lesion of small muscular pulmonary artery (hematoxylin-eosin, original magnification × 200).
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Copyright © 1992 The American College of Chest Physicians Terms and Conditions

3. FIGURE 2
Birefringent material in wall of small pulmonary artery (hematoxylin-eosin, original magnification × 200, partially polarized light).
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Copyright © 1992 The American College of Chest Physicians Terms and Conditions

4. FIGURE 3
Lymphocytic interstitial pneumonia (LIP) in open biopsy specimen of human immunodeficiency virus (HIV)-positive patient (hematoxylin-eosin, original magnification × 80).
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Copyright © 1992 The American College of Chest Physicians Terms and Conditions

5. FIGURE 4
Plexiform lesions of small muscular pulmonary artery, in association with lymphocytic interstitial pneumonia (LIP) and moderate vasculitis (hematoxylin-eosin, original magnification × 200).
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Copyright © 1992 The American College of Chest Physicians Terms and Conditions

6. FIGURE 5
Vasculitis of small pulmonary vessel (hematoxylin-eosin, original magnification × 400).
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Copyright © 1992 The American College of Chest Physicians Terms and Conditions