Brain tumor and achondroplasia: a case report and review of the literature.

This is the first reported case of a meningioma occurring in an achondroplastic dwarf. The patient had been treated for lumbar stenosis 7 years previously and later developed mental status change and visual loss due to a large tuberculum sella meningioma. Statistical analysis of the prevalence of both diseases in the United States shows insufficient evidence for a pathogenetic link between the two diseases.