BY J. PAYSON CLARK, M.D., BOSTON, Physician for Diseases of the Throat, Massachusetts General Hospital. The etiology of this variety of benign tumor, especially in children, is still unknown.1 If papilloma of the larynx is the result of a microbic infection, the specific bacterium is yet to be discovered. The respiratory tract being derived from the epiblast, its papillomata are classed with skin warts.2 But this association does not help us, since dermatologists are equally in the dark regarding the etiology of verruca vulgaris. That the laryngeal variety has the same mild contagiousness 3 which has been more
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J. Payson Clark (1905) studied this question.