The case of ataxia which I am about to describe is one of exceptional interest and especially so when studied in connection with Dr. Smith's very interesting series of cases of hereditary ataxia, with which it has many points of similarity. It resembles hereditary ataxia in the age of the patient (15 years) at which the symptoms developed, the absence of anæsthesia and in fact of all sensory disturbances, the presence of anterior curvature of the spine and nystagmus, and the rapidity with which the symptoms developed. It differs on the other hand from this form of ataxia in the facts, of the freedom, thus far, of the rest of the family from the disease, and in the presence and indeed exaggeration of the patellartendon reflex. It differs again from ordinary tabes in this last particular, in the presence of nystagmus, in the absence of all sensory disturbances of every
PRINCE M. A CASE OF SPINAL ATAXIA WITHOUT LOSS OF SENSATION AND WITH INCREASED PATELLARTENDON REFLEX. A CONTRIBUTION TO THE STUDY OF SPINAL ATAXY. JAMA. 1885;V(18):480–483. doi:10.1001/jama.1885.02391170004001a
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