Presentation is loading. Please wait.

Presentation is loading. Please wait.

Inflammatory causes of perilabyrinthine fistula.

Published byBenny Gunardi Modified over 5 years ago

Similar presentations

Presentation on theme: "Inflammatory causes of perilabyrinthine fistula."— Presentation transcript:

1 Inflammatory causes of perilabyrinthine fistula.
Inflammatory causes of perilabyrinthine fistula. A, Cholesteatoma. Axial CT shows an expansile, widely destructive soft-tissue mass centered in the middle ear with erosion into the cochlea, vestibule, and posterior semicircular canal (arrows). B, Recurrent otitis media. Axial CT identifies residual soft-tissue opacity in the middle ear, with a fistula (arrow) extending through the otic capsule into the lateral semicircular canal. C, Invasive fungal infection. Axial CT illustrates heterogeneous soft tissue centered in the middle ear, with invasion through the otic capsule into the lateral semicircular canal (arrow). M.-L. Ho et al. AJNR Am J Neuroradiol 2017;38:2-9 ©2017 by American Society of Neuroradiology

Download ppt "Inflammatory causes of perilabyrinthine fistula."

Similar presentations

Corresponding midsagittal CT (left), MR (middle), and registered (right) images of the cervical spine show proper alignment and the relationship between.

Corresponding midsagittal CT (left), MR (middle), and registered (right) images of the cervical spine show proper alignment and the relationship between.
Case 1. Case 1. Images in a 51-year-old man with a history of painful maxillary swelling caused by GCG.A, Contrast-enhanced axial CT image demonstrates.

Case 1. Case 1. Images in a 51-year-old man with a history of painful maxillary swelling caused by GCG.A, Contrast-enhanced axial CT image demonstrates.
Mural cholesteatoma. Mural cholesteatoma. Axial (A) and coronal (B) HRCT scans show the shell of the cholesteatoma in the epitympanum (black arrow) and.

Mural cholesteatoma. Mural cholesteatoma. Axial (A) and coronal (B) HRCT scans show the shell of the cholesteatoma in the epitympanum (black arrow) and.
A 50-year-old man with MD. Axial thin-section CT image shows decreased distance between the vertical limb of the posterior semicircular canal and the posterior.

A 50-year-old man with MD. Axial thin-section CT image shows decreased distance between the vertical limb of the posterior semicircular canal and the posterior.
Two axial images from the same case of a facial nerve schwannoma involving the right mastoid segment of the facial nerve canal. Two axial images from the.

Two axial images from the same case of a facial nerve schwannoma involving the right mastoid segment of the facial nerve canal. Two axial images from the.
A 30-year-old man with PSA

A 30-year-old man with PSA
123I/Tc-99m sestamibi subtraction scan (top left); neck sonogram in region of cystic mass (top right); axial arterial phase CT scan (bottom left); and.

123I/Tc-99m sestamibi subtraction scan (top left); neck sonogram in region of cystic mass (top right); axial arterial phase CT scan (bottom left); and.
A–E, Axial contrast-enhanced CT scans, from superior to inferior.

A–E, Axial contrast-enhanced CT scans, from superior to inferior.
A and B, Sagittal (A) and axial (B) fast spin-echo images of the cervical spine before treatment demonstrate diffuse increase in signal intensity (arrows)

A and B, Sagittal (A) and axial (B) fast spin-echo images of the cervical spine before treatment demonstrate diffuse increase in signal intensity (arrows)
Patient with cholesteatoma on the right and chronic otitis media without cholesteatoma on the left. Patient with cholesteatoma on the right and chronic.

Patient with cholesteatoma on the right and chronic otitis media without cholesteatoma on the left. Patient with cholesteatoma on the right and chronic.
Glomus jugulotympanicum in 45-year-old woman who presented with left-sided pulsatile tinnitus. Glomus jugulotympanicum in 45-year-old woman who presented.

Glomus jugulotympanicum in 45-year-old woman who presented with left-sided pulsatile tinnitus. Glomus jugulotympanicum in 45-year-old woman who presented.
Intraosseous temporal bone meningioma in a 45-year-old woman who presented with left-sided hearing loss and tinnitus. Intraosseous temporal bone meningioma.

Intraosseous temporal bone meningioma in a 45-year-old woman who presented with left-sided hearing loss and tinnitus. Intraosseous temporal bone meningioma.
A, Measurement of the angle between the TS-OP line and the hard palate in the lateral scout view of the brain CT (black arrow). A, Measurement of the angle.

A, Measurement of the angle between the TS-OP line and the hard palate in the lateral scout view of the brain CT (black arrow). A, Measurement of the angle.
Case 2: 14-year-old boy with headache, vomiting, dizziness, and ringing in the ear. Case 2: 14-year-old boy with headache, vomiting, dizziness, and ringing.

Case 2: 14-year-old boy with headache, vomiting, dizziness, and ringing in the ear. Case 2: 14-year-old boy with headache, vomiting, dizziness, and ringing.
Case 1: 15-year-old boy with juvenile nasopharyngeal angiofibroma on the right side. Case 1: 15-year-old boy with juvenile nasopharyngeal angiofibroma.

Case 1: 15-year-old boy with juvenile nasopharyngeal angiofibroma on the right side. Case 1: 15-year-old boy with juvenile nasopharyngeal angiofibroma.
Detection of recurrent cholesteatoma when physical examination is obscured and CT is indeterminate. Detection of recurrent cholesteatoma when physical.

Detection of recurrent cholesteatoma when physical examination is obscured and CT is indeterminate. Detection of recurrent cholesteatoma when physical.
Axial CT images at the level of the middle cerebellar peduncles show blood clot within the fourth ventricle. Axial CT images at the level of the middle.

Axial CT images at the level of the middle cerebellar peduncles show blood clot within the fourth ventricle. Axial CT images at the level of the middle.
Case 4: 25-year-old woman with pulsatile tinnitus.

Case 4: 25-year-old woman with pulsatile tinnitus.
Photomicrograph showing a polypoidal mass that is lined by benign squamous epithelium (short arrow) with proliferation of granulation tissue in the underlying.

Photomicrograph showing a polypoidal mass that is lined by benign squamous epithelium (short arrow) with proliferation of granulation tissue in the underlying.
A, Axial CT in a 41-year-old man with vertigo and complete sensorineural hearing loss in the left ear after prior stapedectomy show focal hyperattenuation.

A, Axial CT in a 41-year-old man with vertigo and complete sensorineural hearing loss in the left ear after prior stapedectomy show focal hyperattenuation.

Similar presentations

Ads by Google