A text-book on diseases of the ear, nose and throat . 5. CHRONIC INFLAMMATIONS OF THE LARYNX, 623 morbid process may begin in the perilaryngeal soft tissues. Bresgen ^finds a cause in overexertion of the vocal organs. Pathology.—The condition begins with an increased blood-supply, fol-lowed by increased cell-production. Swelling results, followed by pusformation and the consequent separation of the perichondrium from theunderlying cartilage. The latter becomes superficially eroded and inmany places softened. Any or all of the laryngeal cartilages may beaffected, though it is most usually confi
A text-book on diseases of the ear, nose and throat . 5. CHRONIC INFLAMMATIONS OF THE LARYNX, 623 morbid process may begin in the perilaryngeal soft tissues. Bresgen ^finds a cause in overexertion of the vocal organs. Pathology.—The condition begins with an increased blood-supply, fol-lowed by increased cell-production. Swelling results, followed by pusformation and the consequent separation of the perichondrium from theunderlying cartilage. The latter becomes superficially eroded and inmany places softened. Any or all of the laryngeal cartilages may beaffected, though it is most usually confined to one. Most authors ap-pear to consider that caries is a necessary sequence of perichondria!inflammation ; but this is certainly incorrect, for in not a few cases theinflammation terminates in resolution with more or less thickening andfunctional impairment, but without caries or separation of any j)ortionof the cartilages (Lennox Browne). It is possible, however, for por-tions of cartilage to become separated and then expectorated. Fig. C~
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