. A manual of diseases of the nose and throat. to the sealing up of themouths of mucus-secreting glands, and to the retentionin and distention of the ducts of the glands by the secre-tions. Cysts may be small or quite large, and areusually attached by a broad base. Attention has beencalled recently to the fact that the walls of these cystsare in some cases observed to contain giant-cell forma-tion and tubercle bacilli. There may be no other evi-dences of tuberculosis in an individual having such acyst. The positions in which cysts are most commonlyfound are the ventricular bands, ary-epiglotti
. A manual of diseases of the nose and throat. to the sealing up of themouths of mucus-secreting glands, and to the retentionin and distention of the ducts of the glands by the secre-tions. Cysts may be small or quite large, and areusually attached by a broad base. Attention has beencalled recently to the fact that the walls of these cystsare in some cases observed to contain giant-cell forma-tion and tubercle bacilli. There may be no other evi-dences of tuberculosis in an individual having such acyst. The positions in which cysts are most commonlyfound are the ventricular bands, ary-epiglottic folds,epiglottic, protruding from the ventricles of the larynx,and, rarely, from the vocal cords. 32 498 DISEASES OF THE LARYNX. 4. Polypi are usually semitranslucent bulbous structure resembles very much that of nasalpolypi, although the amount of connective tissue in alaryngeal polyp may be greater and more dense thanthat observed in polypi arising from the nasal mucousmembrane. Their most common situation is on the Fig. A polyp on the right vocal cord. » vocal cords (Fig. 118, in which a polyp is depicted asspringing from the anterior third of the right vocalcord). They are sometimes found springing from thelaryngeal surface of the epiglottis. 5. Lipomata are fatty, tabulated, pale or yellowishgrowths attached by a broad base, and usually springingfrom the ary-epiglottic folds. Their tendency is toenlarge in a lateral and downward direction into thepyriform fossa. 6. Angiomata consist of a mass of dilated bloodves-sels. They are irregular in outline and usually attachedby a broad base. Their color is a deep red or purple ;their size varies from a pins head to a small are found most frequently on the vocal cords,ventricular bands, and epiglottis. 7. Chondromata are firm, dense masses, somewhatirregular in their general outline, and pale in are invariably attached by a broad base, and NON-MALIGNANT GROWTHS OF THE LARYNX. 499 microsc
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