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Am J Med Genet. 1997 Dec 19;73(3):345-50.

First-trimester diagnosis of Blomstrand lethal osteochondrodysplasia.

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Department of Obstetrics and Gynecology, Academic Hospital Rotterdam Dijkzigt, The Netherlands.


Blomstrand chondrodysplasia is a rare lethal skeletal dysplasia with presumed autosomal-recessive inheritance. A family with 2 affected fetuses was studied. One fetus demonstrated a severe skeletal dysplasia at routine transabdominal ultrasound examination at 18.5 weeks of gestation. The pregnancy was terminated and the diagnosis of Blomstrand chondrodysplasia was made at autopsy. A second affected fetus was identified by first-trimester transvaginal ultrasound at 12 weeks of gestation. In this case the diagnosis was confirmed by posttermination radiography and histopathology. From these observations, Blomstrand chondrodysplasia seems like a lethal rhizo/mesomelic short-limb, early-onset dysplasia with autosomal-recessive inheritance. Easy detectability by transvaginal ultrasound is demonstrated, but general applicability awaits further studies on the intra- and interfamilial variability of this disorder.

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