[Topographical diagnosis of facial paralysis (Bell's palsy) (author's transl)].

Topographical diagnosis using Schirmer's test and measurement of the stapes reflex was carried out in a series of 45 cases of Bell's palsy. The aim of this study was to define the exact location of the nerve lesion in order to guide the possible choice of surgical decompression of the facial nerve. The authors noted the existence of a geniculate or suprageniculate lesion in 62% of cases. A study of the literature shows marked disagreement between the various publications. This leads to discussion of the value and interpretation of topographical tests.