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January 1989

Spontaneous Extracranial Pneumatocele Associated With Mastoid Hyperpneumatization

Author Affiliations

From the Departments of Otolaryngology–Head and Neck Surgery (Drs Levenson and Ahuja) and Radiology (Dr Bergeron), Manhattan Eye, Ear and Throat Hospital, and the Department of Radiology, Long Island College Hospital (Dr Bergeron), New York.

Arch Otolaryngol Head Neck Surg. 1989;115(1):107-108. doi:10.1001/archotol.1989.01860250109038

• 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. Surgical exploration demonstrated a large air sac in continuity with nontraumatic bony defects of the tympanosquamous and tympanomastoid sutures.

(Arch Otolaryngol Head Neck Surg 1989;115:107-108)