[A familial case of Kennedy's X-linked bulbospinal amyotrophy].

The authors describe 4 cases of Kennedy's medullo-spinal amyotrophy (BSA) which is a genetically determined disease with mutant gene inheritance by the recessive type with X chromosome cohesion. The disease largely shows up by the impairment of the nervous system in the form of BSA. However, the clinical picture is also marked by the derangement of the mesenchymal (Dupuytren's contracture) and endocrine systems (gynecomastia).