Lakhasly

Surgery: o The procedure was performed under general anesthesia.All patients had done surgical exploration and intrasurgical signs were recorded.o Tegmen plate (eroded or not) o Sinus plate (eroded or not, position (normal position or anteriorly displaced)) o Ossicular chain (eroded or not) o The facial canal (eroded or not, position (normal position or displaced)) o LSCC (eroded or not) o Involvement of the facial recess and sinus tympani (ST) o Eustachian tube (ET) involvement High resolution computed tomography (HRCT) scan of the temporal bone was performed with 1 mm sections in both axial and coronal planes and findings were recorded and tabulated.o Variable techniques of mastoidectomy were performed according to the pathology seen during ear exploration o The following parameters were compared between CT & intra-operative findings: o Soft tissue lesions including (middle ear, attic & mastoid) o Mastoid involvement (well pneumatized (cellular), partially pneumatized (diploic), not pneumatized (sclerotic)) o Scutum (eroded or not).

Surgery:
• The procedure was performed under general anesthesia.
• All patients were prepared and draped in a sterile fashion.
• Variable techniques of mastoidectomy were performed according to the
pathology seen during ear exploration
• The following parameters were compared between CT & intra-operative
findings:
• Soft tissue lesions including (middle ear, attic & mastoid)
• Mastoid involvement (well pneumatized (cellular), partially pneumatized
(diploic), not pneumatized (sclerotic))
• Scutum (eroded or not).
• Tegmen plate (eroded or not)
• Sinus plate (eroded or not, position (normal position or anteriorly displaced))
• Ossicular chain (eroded or not)
• The facial canal (eroded or not, position (normal position or displaced))
• LSCC (eroded or not)
• Involvement of the facial recess and sinus tympani (ST)
• Eustachian tube (ET) involvement
High resolution computed tomography (HRCT) scan of the temporal bone was
performed with 1 mm sections in both axial and coronal planes and findings were
recorded and tabulated. All patients had done surgical exploration and intrasurgical
signs were recorded. Finally, a comparison was done between CT and intraoperative
findings.