The rarity of this curious muscular degeneration is the excuse for the report of a single case. Myotonia congenita, so-called Thomsen's disease, is not very uncommon, but the combination of increased tonus in some muscles with a primary flaccid palsy in others in remarkably constant distribution is so rare that but four cases have been reported2 as yet in the medical literature of this country.
The disease is apparently peculiar to persons in middle life, is of a very slowly progressive character, and, in rather more than half the number of cases, is of familial type. The symptom-complex is so constant and so characteristic that, when once understood, recognition of subsequent cases becomes simple.
REPORT OF CASE
—G. F., an unmarried Swiss, aged 46, was admitted March 27, 1913, to the Cornell Division of Bellevue Hospital, New York, and was placed under the care of Dr. Gilman Thompson.
KENNEDY F. MYOTONIA ATROPHICA. JAMA. 1913;61(22):1959–1960. doi:10.1001/jama.1913.04350230013005
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