Objectives and method The purpose of the case review was to explain the adventage of early interventional treatment and explore the related pathogenic factors of larynx precancerous lesions by retrospective study of 119 patients treated in Beijing Tongren hospital from 1992 to 1996.Result 97 patients completly cured by a single operation,10 by two operations or more and laryngocarcinoma was found only in 4 patients.Conclusion Early interventional treatment can destroy the pathological basis for laryngeal cancer and turn the precancerous laryngeal lesion to a favorable outcome.
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