PubMed · 14259633
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B NIELSEN. 1965-03-18. [OSTEOGENESIS IMPERFECTA].. https://pubmed.ncbi.nlm.nih.gov/14259633/
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OBJECTIVE: To evaluate the contribution of new imaging techniques in the prenatal diagnosis of skeletal dysplasia. METHODS: Between May and October 2003, a prospective study was conducted in a single referral center. Three-dimensional ultrasound (3D-US) and three-dimensional helical computer tomography (3D-HCT) were performed after two-dimensional ultrasound (2D-US) in six cases of skeletal dysplasia. Diagnostic accuracy and detailed findings with each of the three techniques were compared with postnatal radiological findings. RESULTS: There were three cases of achondroplasia, two cases of osteogenesis imperfecta type II and one case of chondrodysplasia punctata. Termination of pregnancy was performed in five cases and one fetus with osteogenesis imperfecta type II was delivered at term by Cesarean section. 2D-US made the correct diagnosis in four cases. 3D-US and 3D-HCT achieved an accurate diagnosis in all six cases. 3D-HCT and 3D-US identified significantly more abnormalities than did 2D-US (3D-HCT: 94.3% (33/35); 3D-US: 77.1% (27/35); 2D-US: 51.4% (18/35); P < 0.01). The diagnosis was made between 27 and 36 weeks' gestation in all cases. The advantage of 3D-HCT over 3D-US was the possibility of imaging the entire fetus. CONCLUSION: 3D-US and 3D-HCT seem to be useful complementary methods to 2D-US, and may improve accuracy of the prenatal diagnosis of skeletal disorders. These new imaging technologies may have a role in the prenatal multidisciplinary approach to the diagnosis of skeletal dysplasias.
We describe in this paper a patient with brachytelephalangic chondrodysplasia punctata (BCDP) who has multiple serious medical problems and striking physical abnormalities. These include cervical spine stenosis with resultant quadriplegia, severe nasal hypoplasia, and brachytelephalangy. Radiographs taken shortly after birth demonstrated extensive epiphyseal and vertebral stippling, and distal phalangeal hypoplasia. The pregnancy was complicated by maternal intestinal obstruction due to a small bowel carcinoma and probable malabsorption. The severity of the phenotype in this case may have been influenced by these maternal factors particularly vitamin K deficiency.
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