van Buchem disease

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van Buchem disease

An autosomal recessive condition (OMIM:239100) characterised by hyperostosis of the skull, mandible, clavicles, ribs and diaphyseal cortices of long bones, as well as a massively enlarged jaw and thickened skull, leading to facial nerve palsy, hearing loss and optic atrophy.

Molecular pathology
van Buchem disease is caused by a genomic deletion of a long-range bone enhancer on chromosome 17q12-q21, which misregulates sclerostin.
References in periodicals archive ?
Similar features can also present in Van Buchem disease, which was first described in 1955 as an autosomal recessive bone dysplasia linked to a genetic locus on chromosome 17q12-21.
Patients with Van Buchem disease, an osteosclerotic genetic disease, have elevated bone formation markers, higher bone density, and greater derived polar moment of inertia than normal.