[Arthrogryposis multiplex congenita with associated abnormalities. Case report of a fatal course in a premature triplet].

A male premature triplet with healthy siblings was born with characteristic symptoms of a Rossi syndrome: pterygiums at neck, axillae, elbows and in a moderate way at hips and knees with inhibition of extension of the affected joints, dislocation of the right hip, club-feet, cutis laxa et hyperelastica, facial dysmorphism, double pelvis renalis with ureter duplex on the right side, kryptorchidism, hypoplastic genital. The boy died after 38 days because of a haemorrhage of the lungs. An intrauterine immobilisation is discussed as cause of the syndrome.