Biomedical subjects
Publications and source records attributed to R R Ruby.
A case of meningioma en plaque presenting as a tumor in the right middle ear is described. A review of the relevant literature indicates only three previous reports of an en plaque meningioma occurring in the posterior cranial fossa. The unusual features of this tumor are described and the clinical manifestations and diagnosis discussed in detail.
Three cases of high jugular bulb are presented. On of these occurred as a mass in the external auditory canal simulating an osteoma, and to our knowledge is the first reported case of a high jugular bulb presenting in the external canal. The clinical manifestations are described, and the value of polytomography as an aid to diagnosis is stressed.
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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.