A lethal osteochondrodysplasia with mesomelic brachymelia, round pelvis, and congenital hepatic fibrosis: two siblings born to consanguineous parents

Pediatric Radiology
G NishimuraN Suehara

Abstract

We report a hitherto unknown, lethal osteochondrodysplasia in two Japanese siblings born to consanguineous parents. The skeletal abnormalities are characterised by mesomelic brachymelia with bowed forearms, a round pelvis with shortened greater sciatic notches, an ossification defect of the pubic bones, and absence of ossification centers in the cervical vertebral bodies. The associated visceral anomalies comprised periportal fibrosis and cystic dysplasia of the intrahepatic bile ducts, pancreatic ductal ectasia, a simple renal cyst, microcephaly with multifocal laminar necrosis and ectopic gray matter, dysplastic tracheobronchial cartilage, abnormal lobulation of the lung, diaphragmatic hernia, and stenotic pulmonary valve. Thrombocytopenia was present but megakaryocytes were slightly increased in the bone marrow. The patients showed various dysmorphic features including aniridia, a long palpebral fissure, prominent nasal bridge, beaked nose, flat philtrum, low-set fleshy ears, micrognathia with submucosal cleft palate, and multiple joint contractures.

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