The term benign is used in the title in its conventional sense and for the sake of simplicity. A growth that causes death is not benign in the strictest meaning of the word, and an inflammatory hyperplasia shaped like a tumor is not, histologically, a neoplasm, but the clinician's primary concern in tumor-like nonmalignant obstructions of the bronchi is the secondary atelectasis, bronchiectasis and pulmonary abscess caused by obstruction to ventilation and drainage, and how to get rid of the obstruction.
It is from this practical point of view that the subject is here presented.
The following is a list of the benign tumors and nonmalignant tumor-like conditions found in our tracheobronchoscopic case records: angioma, hematoma, adenoma, myoma, myxoma, papilloma, fibroma, fibrolipoma, edematous polyp, myomatoid edematous polyp, lymphoma, lymphangioma, lymphadenoma, lipoma, ecchondroma, osteoma, chondrosteoma, retention cyst, amyloid tumor, aberrant thyroid tumor, specific granuloma and nonspecific granuloma.
The names are given
JACKSON C, JACKSON CL. BENIGN TUMORS OF THE TRACHEA AND BRONCHI: WITH ESPECIAL REFERENCE TO TUMOR-LIKE FORMATIONS OF INFLAMMATORY ORIGIN. JAMA. 1932;99(21):1747–1754. doi:10.1001/jama.1932.02740730011005
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