tympanomastoid suture

The clinical, surgical, and postoperative findings were reviewed in 84 operations for correction of bony stenosis of the external auditory canal caused by diffuse exostoses. Sixteen operations for removal of a solitary osteoma of the external auditory canal are also included in the review. The solitary osteoma is an uncommon unilateral lesion, attached to the tympanosquamous or tympanomastoid suture line, almost always in the outer half of the ear canal. Removal is indicated in most cases and may be performed through the external meatus under local anesthesia...

The ideal patient for a radical mastoidectomy with total tympanomastoid cavity obliteration is one with chronic granulomatous otomastoiditis without cholesteatoma, profound sensorineural hearing loss, and a normal ear on the opposite side. A meticulous and thorough classical radical mastoidectomy is required. The resultant cavity is eliminated by filling it with pedicled flaps and/or adipose tissue taken from the abdominal wall. Suturing the skin of the anterior and posterior membranous canal walls completes the procedure...

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.