Tumors of the cerebellum / by Charles K. Mills [and others].

Date:
1905
Catalogue details

Licence: In copyright

Credit: Tumors of the cerebellum / by Charles K. Mills [and others]. Source: Wellcome Collection.

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    regarded as a direct cerebellar symptom. It has also been referred, according to Arnheim who quotes Russell in this respect, to a paralysis of the ocular muscles. That double optic neuritis, internal strabismus, and nystagmoid movements on looking both to the right and to the left, must not, however, be regarded as characteristic or pathognomonic of cerebellar tumor, is evident from a case recorded by Bram- well,?? in which these symptoms were present and the lesion consisted of a dilatation of the ventricles, especially of the fourth ventricle, the result of a previous meningitis and an obliteration of the fora- _men of Magendie. The oscillation of the globes in blindness from cerebellar tumor must not be con- fused with true nystagmus. There is nothing characteristic in the pupil reac- tions in disease of this region. If there is blindness and loss of light perception, there is naturally loss of the light reflex, while, if light perception remains, this reflex is preserved. | So, also, the field of vision furnishes no charac- teristic changes. It may be perfectly intact or con- centrically or irregularly contracted, according to the degree of atrophy existing in the optic nerves. In some cases there seems to have been hemian- opsia, but probably only a contraction of the 12 Brain, XXII, 1899, p. 68.