title: [Lethal syndromes with thin bones].
abstract: The authors report six cases from six different families of lethal brittle bone disease with narrow diaphyses and thin ribs. This phenotype should be dissociated from the lethal forms of osteogenesis imperfecta and encompass two diseases. In the first, autosomal recessive, the metaphyses of long bones are narrow, with a membranous ossification, without cartilagenous residue. Cultured fibroblasts demonstrate a marked increase in type V collagen. In the second type, the metaphyses are enlarged and the babies have a facial dysmorphism with hypoplasia of the eyebrows, frontal bossing and a small mouth.
authors.affiliation: Unité de Recherches de Génétique Médicale (INSERM U 12), Hôpital des Enfants-Malades, Paris.
authors.forename: P
authors.initials: P
authors.lastname: Maroteaux
authors.forename: L
authors.initials: L
authors.lastname: Cohen-Solal
authors.forename: J
authors.initials: J
authors.lastname: Bonaventure
authors.forename: M O
authors.initials: MO
authors.lastname: Peter
authors.forename: C
authors.initials: C
authors.lastname: Francannet
authors.forename: P
authors.initials: P
authors.lastname: Guibaud
authors.forename: C
authors.initials: C
authors.lastname: Moraine
mesh_terms: D001848:Bone Diseases, Developmental / Q000175:diagnosis / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D010013:Osteogenesis Imperfecta / Q000000981:diagnostic imaging*; D011859:Radiography; D013577:Syndrome
vernacular_title: Syndromes létaux avec gracilité du squelette.