Adult G M1 ‐gangliosidosis

Abstract
A family with adult GM1-gangliosidosis was studied. The proband, aged 38, had slowly progressive extrapyramidal signs with prominent dystonia, starting at .apprx. 19 yr. Two other patients, aged 45 and 43 yr, had occasional slight dystonia, but led normal social lives because of mildness of their symptoms. Rectal biopsy of the proband showed histiocytic infiltration and membraneous cytoplasmic bodies in the autonomic neurons. This family shows the clinical heterogeneity in adult GM1-gangliosidosis.