An intraorbitalsubperiosteal hematoma is a rare clinical entity that is usually caused by head trauma. The authors experienced a patient involving an intraorbital hemorrhage that was associated with minor injury in the forehead and that required surgical decompression. The authors describe this rare case involving an intraorbitalsubperiosteal hematoma that occurred in a conscious young boy who had no remarkable head injury and who had sudden onset of proptosis. Three-dimensional computed tomography, which was conducted with a volume-rendering method, was very useful, and the transorbital approach that was used to remove the hematoma was very effective. The patient showed good recovery. The pathogenesis of the intraorbitalsubperiosteal hemorrhage could not be fully explained, and, thus, the authors suggest that a possible pathogenesis involved the migration of the hemorrhage from the forehead into the intraorbital region.
*Department of Neurosurgery, Sapporo Medical University School of Medicine, Sapporo
†Department of Neurosurgery, Obihiro Kosei Hospital, Obihiro, Japan.
Address correspondence and reprint requests to Yukinori Akiyama, MD, PhD, Department of Neurosurgery, Sapporo Medical University School of Medicine, S1 W16 Chuo-ku Sapporo, Hokkaido 060-8543, Japan;. E-mail: email@example.com
Received 25 February, 2015
Accepted 28 June, 2015
The author reports no conflicts of interest.