Perinatal Lethal Osteogenesis Imperfecta: Radiologic and Pathologic Evaluation of Seven Prenatally Diagnosed Cases

Abstract
The radiologic and pathologic characteristics of 7 cases of lethal osteogenesis imperfecta (01), diagnosed prenatally by ultrasound in the 15th to 34th week, are described. They include four variants of the Sillence classification: types HA, IIB, IIC, and type III. The radiologic criteria that differentiate these types of 01 are described. The histopathology of the bones differed only slightly in types IIA, IIB, and III; 01 type IIC, however, differed markedly from the other types.