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March 2020 Clinical Case Vid. 1

Video Author: The Hearing Journal
Published on: 03.04.2020
Associated with: The Hearing Journal. 73(3):40,42,44, March 2020

Video 1. Axial (horizontal) CT showing a mass in the ear canal but no bony erosion into the mastoid or the anterior ear canal.

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Creator: The Hearing Journal
Duration: 00:10
Video 1. Axial (horizontal) CT showing a mass in the ear canal but no bony erosion into the mastoid or the anterior ear canal.
Creator: The Hearing Journal
Duration: 00:10
Video 2. Coronal (vertical, parallel to the face) CT showing the mass with some opacification of the mastoid and the epitympanum.
Creator: The Hearing Journal
Duration: 00:09
Video 3. Sagittal (vertical, parallel to the ear) CT showing the canal to be fully intact.
Creator: The Hearing Journal
Duration: 00:15
Video 4. Axial (horizontal) T1 post-gadolinium MRI showing the mass in the ear canal and no extension into the mastoid or parotid gland.
Creator: The Hearing Journal
Duration: 00:14
Video 5. Coronal (vertical, parallel to the face) T1 postgadolinium MRI showing that the mass did not extend intracranially.
Creator: The Hearing Journal
Duration: 00:10
Video 6. Axial (horizontal) DWI MRI showing no cholesteatoma.
Creator: The Hearing Journal
Duration: 00:11
Video 1. Video of the examination.
Creator: The Hearing Journal
Duration: 00:10
Video 2. Axial (horizontal) T2 MRI showing small amount of fluid in the mastoid on right and normal mastoid on the left.
Creator: The Hearing Journal
Duration: 00:09
Video 3. Axial (horizontal) CT showing the opening in the mastoid and some air intracranially.
Creator: The Hearing Journal
Duration: 00:10
Video 4. Coronal (vertical parallel to face) CT showing the opening in the posterior mastoid.
Creator: The Hearing Journal
Duration: 00:10
Video 5. Axial (horizontal) T1 post-gadolinium showing the extent of the large petroclival meningioma.
Creator: The Hearing Journal
Duration: 00:10
Video 6. Axial (horizontal) CT prior to the recent surgery showing an intact mastoid process and previous titanium plate over the craniectomy
Creator: The Hearing Journal
Duration: 00:10
Video 1. Axial (horizontal) CISS images demonstrating hyperintense (brighter than the brain) fluid in the middle ear and mastoid on the right (left side of the images).
Creator: The Hearing Journal
Duration: 00:13
Video 2. Axial (horizontal) T1 showing the hyperintense fluid in the right middle ear.
Creator: The Hearing Journal
Duration: 00:15
Video 3. Axial DWI showing no hyperintensity, indicating the absense of cholesteatoma in the temporal bone.
Creator: The Hearing Journal
Duration: 00:09
Video 4. Coronal (vertical, parallel to the face) T1 fat-suppressed post-contrast, which shows the mastoid fluid to be darker and the middle ear component hyperintense (brighter than the brain).
Creator: The Hearing Journal
Duration: 00:10
Video 5. Axial (horizontal) post-contrast bone window CT showing the fluid or soft tissue occupying the middle ear and mastoid.
Creator: The Hearing Journal
Duration: 00:10
Video 6. Coronal (vertical, parallel to the face) CT of the temporal bones showing no tegmen (bone separating the brain from the ear) defect.
Creator: The Hearing Journal
Duration: 00:09
Video 1. Axial (horizontal) CISS showing the full extent of the Meckel’s cave diverticula.
Creator: The Hearing Journal
Duration: 00:09
Video 2. Axial (horizontal) T2 showing small ventricles, indicating that the patient is likely suffering from intracranial hypertension.



Creator: The Hearing Journal
Duration: 00:10
Video 1. Axial (horizontal) CT showing a mass in the ear canal but no bony erosion into the mastoid or the anterior ear canal.
Creator: The Hearing Journal
Duration: 00:10
Video 2. Coronal (vertical, parallel to the face) CT showing the mass with some opacification of the mastoid and the epitympanum.
Creator: The Hearing Journal
Duration: 00:09
Video 3. Sagittal (vertical, parallel to the ear) CT showing the canal to be fully intact.
Creator: The Hearing Journal
Duration: 00:15
Video 4. Axial (horizontal) T1 post-gadolinium MRI showing the mass in the ear canal and no extension into the mastoid or parotid gland.
Creator: The Hearing Journal
Duration: 00:14
Video 5. Coronal (vertical, parallel to the face) T1 postgadolinium MRI showing that the mass did not extend intracranially.
Creator: The Hearing Journal
Duration: 00:10
Video 6. Axial (horizontal) DWI MRI showing no cholesteatoma.
Creator: The Hearing Journal
Duration: 00:11
Video 1. Video of the examination.
Creator: The Hearing Journal
Duration: 00:10
Video 5. Axial (horizontal) T1 post-gadolinium showing the extent of the large petroclival meningioma.
Creator: The Hearing Journal
Duration: 00:10
Video 6. Axial (horizontal) CT prior to the recent surgery showing an intact mastoid process and previous titanium plate over the craniectomy
Creator: The Hearing Journal
Duration: 00:10
Video 5. Axial (horizontal) post-contrast bone window CT showing the fluid or soft tissue occupying the middle ear and mastoid.
Creator: The Hearing Journal
Duration: 00:10
Video 6. Coronal (vertical, parallel to the face) CT of the temporal bones showing no tegmen (bone separating the brain from the ear) defect.
Creator: The Hearing Journal
Duration: 00:10
Video 1. Axial (horizontal) CT of the right temporal bone showing the widened IAC.
Creator: The Hearing Journal
Duration: 00:10
Video 2. Axial (horizontal) CT of the left temporal bonedemonstrating the normal IAC.
Creator: The Hearing Journal
Duration: 00:09
Video 3. Coronal (parallel to face) CT showing thenormal vs. an abnormally widened IAC in the coronalplane.
Creator: The Hearing Journal
Duration: 00:10
Video 2. Axial (horizontal) CT of the right temporal bone showing the normally inserted electrode
Creator: The Hearing Journal
Duration: 00:10
Video 5. Axial (horizontal) CT temporal bones showing theextension of the diverticulum into the subcutaneous tissues.
Creator: The Hearing Journal
Duration: 00:10
Video 5. Axial T1 post gadolinium MRI of the brain obtained in2010 showing a detailed axial view of the transverse andsigmoid sinuses and the narrowed areas.
Creator: The Hearing Journal
Duration: 00:10
Video 1. Subtraction MR arteriography (three-dimensional view of all arteries) of the patient with spinning inthe lateral direction showing the blushing of vessels around the cavernous carotid.
Creator: The Hearing Journal
Duration: 00:10
Video 4. Axial (horizontal) T1 post-contrast MRI of the orbitsshowing the enhancement (bright area) around the leftpetrous carotid (right side of images) and the enlarged leftsuperior ophthalmic vein.
Creator: The Hearing Journal
Duration: 00:35
Video 6. Coronal (parallel to the face superiorly-inferiorly) T1 MRIshowing that the contents of the mastoid are in continuity with thebrain.
Creator: The Hearing Journal
Duration: 00:10
Video 3. Coronal (parallel to the face superiorly-inferiorly) CT of the right temporal bone showing the enlarged vestibular aqueduct in the coronal direction.
Creator: The Hearing Journal
Duration: 00:10
Video 5. Axial (horizontal) CISS -sequence MRI does not show significant hyperintensity in the vestibular aqueduct.
Creator: The Hearing Journal
Duration: 0:10
Video 2. Axial (horizontal) CT of the left temporal bone showing the full defect of the posterior cranial fossa.
Creator: The Hearing Journal
Duration: 0:11
Video 3. Coronal (parallel to the face superiorly-inferiorly) CT of the right temporal bone showing the relationship between the sigmoid and mastoid.
Creator: The Hearing Journal
Duration: 00:10
Video 4. Coronal HASTE sequence showing no hyperintensity in the entire field of study.
Creator: The Hearing Journal
Duration: 0:09
Video 6. Sagittal (vertical, parallel to the ear) CT of the left temporal bone shows the internal auditory canal going toward the ear canal anatomy.
Creator: The Hearing Journal
Duration: 00:14
Video 4. Coronal T1-weighted post-contrast MRI of the temporal bones showing the brain close to the destruction of the tegmen above the ear canal on the patient’s right side (left side of images).
Creator: The Hearing Journal
Duration: 00:11
Video 6. Coronal T2-weighted MRI of the right temporal bone showing the fluid-filled nature and extent of the mass.
Creator: Toni Bacala
Duration: 00:14
Video 4. Axial T1-weighted post-gadolinium enhanced MRI showing the mass in the outer canal.
Creator: Toni Bacala
Duration: 00:14
Video 5. Coronal T1-weighted gadolinium-enhanced MRI of the IAC showing the mass and its location.