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http://dx.doi.org/10.1097/MAO.0b013e3181e7133d | DOI Listing |
Spine J
October 2013
Diagnostic Radiology Residency Program, University of Washington, 1959 NE Pacific St, Seattle, WA 98195, USA. Electronic address:
Background Context: Acquired hyperpneumatization of the skull base and upper cervical vertebrae is extremely rare and is thought to occur in patients who habitually perform the Valsalva maneuver or engage in repetitive positive pressure activities such as scuba diving or free diving. Craniocervical hyperpneumatization has been reported to cause intracranial and extracranial pneumatoceles but is not generally considered as a cause of pneumorrhachis (air in the spinal canal). Pneumorrhachis is relatively rare, and usually occurs in a localized form, either in the cervical spine secondary to skull base fractures or in the thoracic spine secondary to pneumomediastinum or pneumothorax.
View Article and Find Full Text PDFOtol Neurotol
April 2011
Department of Otolaryngology, Taipei Medical University Hospital, Taipei, Taiwan, Republic of China.
J Otolaryngol
December 1995
Department of Otorhinolaryngology, King Saud University College of Medicine and Hospital, Riyadh, Kingdom of Saudi Arabia.
This article reports a case of spontaneous extracranial pneumatocele and introduces a new simple terminology for this clinical entity. A 10-year-old Saudi girl presented with left tympanoparietomastoid swelling. It was found to be fluctuant and full of air.
View Article and Find Full Text PDFGaoxiong Yi Xue Ke Xue Za Zhi
February 1992
Department of Surgery, Veterans General Hospital, Taichung, Taiwan, Republic of China.
An 18-year-old Chinese man, suffering from head injury in a motorcycle accident, with right traumatic frontal intracerebral hemorrhage and frontal bone fractures, underwent emergency craniotomy with evacuation of hematoma at a local out-patient clinic and three months later, he suffered from CSF rhinorrhea. Headache, nausea and vomiting developed a week prior to admission. Tension pneumocephalus was diagnosed by computed tomography (CT) scan and plain skull X-ray.
View Article and Find Full Text PDFArch Otolaryngol Head Neck Surg
January 1989
Department of Otolaryngology-Head and Neck Surgery, Manhattan Eye, Ear and Throat Hospital, New York, New York.
Spontaneous extracranial pneumatoceles unassociated with trauma are rare. We report a case of spontaneous extracranial mastoid pneumatocele associated with exuberant pneumatization of the calvarium and mastoid. The patient presented with a compressible bulge over the base of the zygoma and superior to the pinna.
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