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Beware of Osteogenesis Imperfecta

Subdural Hematoma in a 10-Year-Old Child With Minor Head Trauma

Dinca, Eduard B. MD, PhD*; Carron, Romain MD, PhD*†

The Journal of Nervous and Mental Disease: July 2019 - Volume 207 - Issue 7 - p 575–576
doi: 10.1097/NMD.0000000000001009
Brief Report

Osteogenesis imperfecta (OI) is a rare genetic disorder characterized by disruption of normal collagen formation resulting in varying degrees of ligamentous laxity and skeletal vulnerability; the low bleeding potential is easily overlooked. Subdural hematoma (SDH) is a common neurosurgical condition, classically related to the rupture of bridging cortico-dural veins after trauma. In the pediatric population, the age distribution shows a massive preponderance for children in their early first decade. We report a very unusual case of SDH in a 10-year-old boy with OI type I, with history of minor trauma. SDH remains exceedingly rare in OI, and its pathophysiology is unclear. To the best of our knowledge, this is the first report of a unilateral subacute SDH associated with OI in a child of such advanced age. These cases may also carry legal ramifications, including misdiagnosis of child abuse in ambiguous situations that are not thoroughly investigated.

*Department of Functional Neurosurgery and Stereotactic Radiosurgery, “La Timone” University Hospital; and

INSERM, UMR 1106, Aix-Marseille University, Marseille, France.

Send reprint requests to Eduard B. Dinca, MD, PhD, Department of Functional Neurosurgery and Stereotactic Radiosurgery, “La Timone” University Hospital, 264 Rue Saint Pierre, 13385 Marseille, France. E-mail:

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