[Hoffmann's syndrome. The role of neurologists in the diagnosis of hypothyroidism].

In a mason aged 48 years gradually hardness, rigidity and painful muscle spasms, slowness of movements and awkwardness with progressing difficulties in walking developed. Only after several months of observation the finding of pseudo-myotonia suggested the diagnosis of Hoffmann's syndrome during hypothyroidism. In a number of neurological syndromes and in unclear muscular signs it is useful to consider hypothyroidism in the differential diagnosis.