1. Metastatic Malignant Tumors to the Bronchus Found in Bronchial Biopsy and Secretions 
IRVING M. REINGOLD, M.D., B.E. KONWALER, M.D. 
Diseases of the Chest 
Volume 18, Issue 2, Pages (August 1950)
DOI: /chest
Copyright © 1950 The American College of Chest Physicians Terms and Conditions

2. FIGURE 1, CASE 1
Entire biopsy removed from lumen of right lobe bronchus. Note striking resemblance to adenocarcinoma of the colon from which this is a metastasis.
Diseases of the Chest  , DOI: ( /chest )
Copyright © 1950 The American College of Chest Physicians Terms and Conditions

3. FIGURE 2, CASE 1
Metastatic adenocarcinoma eroding through bronchus: (A) Adenocarcinoma, (B) Lumen of Bronchus, (C) Respiratory Mucosa of Bronchus, (D) Cartilage. Note marked diminution in size of lumen due to intraluminal projection of the metastasis.
Diseases of the Chest  , DOI: ( /chest )
Copyright © 1950 The American College of Chest Physicians Terms and Conditions

4. FIGURE 3, CASE 2
Bronchial aspiration in case of metastatic malignant melanoma. Note the large hyperchromatic malignant cells which vary in size and shape. The nuclei of these cells are large and the cytoplasm scant. One tumor cell is pigmented.
Diseases of the Chest  , DOI: ( /chest )
Copyright © 1950 The American College of Chest Physicians Terms and Conditions

5. FIGURE 4, CASE 3
Polypoid tumor mass extending from peribronchial lymph nodes into main stem bronchus of left lower lobe. The tumor projects through the branches of the bronchus by broad pedicles. Note that the tumor does not encircle the bronchial walls, in contradistinction to cases of stenosing bronchogenic carcinoma. The tumor was a rhabdomyosarcoma, histologically identical with that found in the primary site, the right kidney.
Diseases of the Chest  , DOI: ( /chest )
Copyright © 1950 The American College of Chest Physicians Terms and Conditions