The cases of 7 myopathic patients with precocious fibrotendinous retractions p.re reported. The author suggests that this type of affection does not constitute a well defined nosological entity in itself. He discusses the bibliographic references on the subject, considering limiting sclerotic myopathies, generalized muscular sclerosis, heredofamiliar myosclerosis, fibrous myositis, senile myosclerosis, dysplastic mesenchymosis and arthrogryposis.