[Meningioma of the ear simulating a glomus tumor: report on two cases (author's transl)].

Two further cases of a meningioma of the ear simulating a glomus tumor are reported, pathological features in the first case leading to intensive discussion. Two such cases had been previously described in great detail in a paper published in 1977. In those patients, the differential diagnosis froma jugular glomus tumor was only established two and a half years later in one case, when excision was necessary because of an intracranial recurrence, and following-re-examination of all sections of jugular glomus tumors previously operated upon, in the other case. Factors enabling detection of meningiomas simulating glomus tumors were also discussed in the original report. Theses included discordance of clinical finding, -minimal signs on arteriography, -the primordial value of contrast computed tomography, -systematic alerting of the pathologist.