PubMed · 14307593
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J M LESSARD, R PAGE, J J FERLAND, J M LEVESQUE. 1965. [PATELLECTOMY].. https://pubmed.ncbi.nlm.nih.gov/14307593/
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BACKGROUND: The metatropic dysplasia group includes fibrochondrogenesis, Schneckenbecken dysplasia and metatropic dysplasia (various forms). The overlapping features of this group with other dysplasias may cause diagnostic confusion, particularly in perinatal lethal cases. OBJECTIVE: To attempt to classify the radiological findings of the presented eight sporadic cases based on a broad review of the perinatally lethal metatropic group of conditions and to discuss some overlapping features in the light of current knowledge. RESULTS: The first four cases are of recognised conditions, namely lethal metatropic dysplasia (Type 2) or hyperchondrogenesis, lethal hyperplastic metatropic dysplasia (Type 1) and fibrochondrogenesis. The remaining four cases cannot be categorised accurately and are different from each other but with some features of the metatropic group of dysplasias. CONCLUSIONS: The dysplasias within the metatropic dysplasia group are phenotypically distinct from many forms of chondrodysplasia but the pathogenesis still remains poorly understood from the morphological and molecular perspectives. Chondro-osseous morphology might be helpful in all lethal cases especially in our last four cases.
Marfan's Syndrome (MFS) is an autosomal dominant condition resulting in a generalised weakness of the supporting tissues of the body. In its classical form it is associated with abnormalities of the eye, the skeletal system and the cardiovascular system. The prevalence of classical Marfan's Syndrome is 4-6 per 100,000 people. It has significant implications for affected women who are contemplating pregnancy. A multidisciplinary approach involving the specialities of maternal fetal medicine, cardiology and clinical genetics is optimal for provision of care to women with Marfan's Syndrome.
The Stuve-Wiedemann syndrome (SWS) is a congenital bone dysplasia characterized by camptodactyly with ulnar deviation and congenital bowing of the long bones. Affected patients present with respiratory difficulties in the neonatal period or later and recurrent episodes of hyperthermia. The typical radiological findings are bowing of the long bones of the lower limbs, wide metaphyses with decreased density, and abnormal trabecular pattern. Generally, respiratory insufficiency and hyperthermia are reported to be the cause of death. We report on two sibs with SWS, who died from severe pulmonary hypertension with pulmonary artery wall abnormality. We suggest a common pathophysiological process, which could explain the cardiovascular findings that we observed immediately after birth in the two affected sibs. We hypothesize that the severe pulmonary hypertension due to the arterial wall abnormality could explain the neonatal death of these two children.