[The characteristics of the familial polymorphism of Huntington's chorea].

Familial pleomorphism of Huntington's chorea (HC) was studied on the basis of examining the members of a large family (over 200 representatives) living in the Shamkhor District [correction of focus] of Azerbaijan, where the disease was diagnosed in 41 probands. The phenotype testing was performed with the aid of a standard map for assessing the neurological and neuropsychological status. The multidimensional statistical treatment made it possible to distinguish the four phenotypic groups: hyperkinetic, psychic, combined hyperkinetic and psychic, and akinetic-rigid. The clinical pleomorphism of the phenotypes distinguished was analyzed. Based on the logical search, a quantitative test map for estimating the disease gravity is provided. Use is made of the most informative signs.