In a retrospective study of 348 patients receiving radiotherapy as the primary treatment for carcinoma involving the laryngeal region, perichondritis developed in 52--an incidence of 15%. Of these 52 cases of clinically diagnosed perichondritis, 50% had residual or recurrent carcinoma. A controversy exists regarding the value of frequent and multiple biopsies in these patients; disease will be missed if this is not done, but perichondritis and cartilage necrosis may result from infection introduced by repeated laryngeal manipulation. On the basis of this study the authors recommend an aggressive approach with close follow-up and multiple frequent biopsies as the data indicate an incidence of 50% recurrent or residual tumor when perichondritis is present.

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