Seven cases of A. T. D. are presented. Radiological findings were extraordinarily diverse. The prognosis of the disease is difficult for each individual case, because of the frequent pulmonary complications and cystic renal lesions are not always directly related to the severity of the bone changes. The authors believe that the term "thoracic-pelvic-phalangeal dysplasia" proposed by Langer, is the most adequate, since it points to the key factors in the diagnosis of the disease.

This report describes a patient with a form of chondrodysplasia characterised by a rhizomelic shorteining of the limbs, metaphyseal widening, vertebral coronal clefts and retrognathia. This syndrome was first described by Weissenbacher and Zweymuller in 1964. All the relevant literature available has been reviewed and it has been concluded there are mild and severe forms of this syndrome.

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