Dural Defects

Temporal Bone Image Library

  • Title: Arachnoid granulation, L-311-1
  • Chapter: Developmental Defects
  • Chapter section: CSF Leaks, Dural Defects, Variform Anomalies External and Middle Ear
  • TB Case Number: 1024
  • Comments: 94 yr old female with occult arachnoid granulation against tegmen tympani (middle cranial fossa)
  • Gender: Female
  • Age(yrs.): 95
  • otologic_dx:

    Clinical:

    1. Adult onset, progressive, bilateral sensorineural hearing loss, probably genetic in etiology

    Histopathologic:

    2. Stria vascularis atrophy, near total, affecting entire cochlear duct, bilateral, probably genetically determined

  • Title: Arachnoid granulation, L-311-1
  • Chapter: Developmental Defects
  • Chapter section: CSF Leaks, Dural Defects, Variform Anomalies External and Middle Ear
  • TB Case Number: 1024
  • Comments: 94 yr old female with occult arachnoid granulation against tegmen tympani (middle cranial fossa)
  • Gender: Female
  • Age(yrs.): 95
  • otologic_dx:

    Clinical:

    1. Adult onset, progressive, bilateral sensorineural hearing loss, probably genetic in etiology

    Histopathologic:

    2. Stria vascularis atrophy, near total, affecting entire cochlear duct, bilateral, probably genetically determined

  • Title: Arachnoid granulation, L-311-2
  • Chapter: Developmental Defects
  • Chapter section: CSF Leaks, Dural Defects, Variform Anomalies External and Middle Ear
  • TB Case Number: 1024
  • Comments: 94 yr old female with occult arachnoid granulation against tegmen tympani (middle cranial fossa)
  • Gender: Female
  • Age(yrs.): 95
  • otologic_dx:

    Clinical:

    1. Adult onset, progressive, bilateral sensorineural hearing loss, probably genetic in etiology

    Histopathologic:

    2. Stria vascularis atrophy, near total, affecting entire cochlear duct, bilateral, probably genetically determined

  • Title: Arachnoid granulation, L-311-2
  • Chapter: Developmental Defects
  • Chapter section: CSF Leaks, Dural Defects, Variform Anomalies External and Middle Ear
  • TB Case Number: 1024
  • Comments: 94 yr old female with occult arachnoid granulation against tegmen tympani (middle cranial fossa)
  • Age(yrs.): 95
  • otologic_dx:

    Clinical:

    1. Adult onset, progressive, bilateral sensorineural hearing loss, probably genetic in etiology

    Histopathologic:

    2. Stria vascularis atrophy, near total, affecting entire cochlear duct, bilateral, probably genetically determined

  • Title: Arachnoid granulation, L-100
  • Chapter: Developmental Defects
  • Chapter section: CSF Leaks, Dural Defects, Variform Anomalies External and Middle Ear
  • TB Case Number: 117
  • Gender: Female
  • Age(yrs.): 90
  • otologic_dx:

    1. Paget’s disease, osteoblastic and remodeled phase, mild, left

    2. Internal auditory canal, narrowed, Paget’s disease, without nerve compression, left

    3. Pacchionian bodies, mastoid, left

    4. Artifact, preparation, membranous labyrinth, moderately severe

  • Title: Arachnoid granulation, R-161
  • Chapter: Developmental Defects
  • Chapter section: CSF Leaks, Dural Defects, Variform Anomalies External and Middle Ear
  • TB Case Number: 66
  • Comments: Arachnoid granulation, R-161
  • Gender: Male
  • Age(yrs.): 51
  • otologic_dx:

    1. Temporal bones, normal

    2. Membranous labyrinth, normal, bilateral

    3. Artery, accessory meningeal, bilateral

    4. Facial hiatus, widely open, bilateral

    5. Artifact, preparation, compression, right

    6. Pacchionian body, floor of middle cranial fossa, right

  • Title: Arachnoid granulation, R-161
  • Chapter: Developmental Defects
  • Chapter section: CSF Leaks, Dural Defects, Variform Anomalies External and Middle Ear
  • TB Case Number: 66
  • Gender: Male
  • Age(yrs.): 51
  • otologic_dx:

    1. Temporal bones, normal

    2. Membranous labyrinth, normal, bilateral

    3. Artery, accessory meningeal, bilateral

    4. Facial hiatus, widely open, bilateral

    5. Artifact, preparation, compression, right

    6. Pacchionian body, floor of middle cranial fossa, right

  • Title: Arachnoid granulation, R-161
  • Chapter: Developmental Defects
  • Chapter section: CSF Leaks, Dural Defects, Variform Anomalies External and Middle Ear
  • TB Case Number: 66
  • Comments: Arachnoid granulations
  • Gender: Male
  • Age(yrs.): 51
  • otologic_dx:

    1. Temporal bones, normal

    2. Membranous labyrinth, normal, bilateral

    3. Artery, accessory meningeal, bilateral

    4. Facial hiatus, widely open, bilateral

    5. Artifact, preparation, compression, right

    6. Pacchionian body, floor of middle cranial fossa, right

  • Title: L100 Arachnoid Granulation
  • Chapter: Developmental Defects
  • Chapter section: CSF Leaks, Dural Defects, Variform Anomalies External and Middle Ear
  • TB Case Number: 117
  • Gender: Female
  • Age(yrs.): 90
  • otologic_dx:

    1. Paget’s disease, osteoblastic and remodeled phase, mild, left

    2. Internal auditory canal, narrowed, Paget’s disease, without nerve compression, left

    3. Pacchionian bodies, mastoid, left

    4. Artifact, preparation, membranous labyrinth, moderately severe

  • Title: Facial nerve, L-21 copy
  • Chapter: Developmental Defects
  • Chapter section: CSF Leaks, Dural Defects, Variform Anomalies External and Middle Ear
  • TB Case Number: 998
  • Comments: CSF space extension to geniculate ganglion
  • Gender: Female
  • Age(yrs.): 91
  • otologic_dx:

    Clinical:

    Progressive hearing loss, bilateral, presumed sensorineural and of genetic etiology

    Histological:

    1. Mild cochlear degeneration (outer hair cell loss in basal turn, mild patchy
    strial atrophy, mild basal spiral ganglion cell loss, spiral ligament

  • Title: Facial nerve, L-21 copy
  • Chapter: Developmental Defects
  • Chapter section: CSF Leaks, Dural Defects, Variform Anomalies External and Middle Ear
  • TB Case Number: 998
  • Comments: CSF space extension to geniculate ganglion
  • Gender: Female
  • Age(yrs.): 91
  • otologic_dx:

    Clinical:

    Progressive hearing loss, bilateral, presumed sensorineural and of genetic etiology

    Histological:

    1. Mild cochlear degeneration (outer hair cell loss in basal turn, mild patchy
    strial atrophy, mild basal spiral ganglion cell loss, spiral ligament

  • Title: Facial nerve, L-51 copy
  • Chapter: Developmental Defects
  • Chapter section: CSF Leaks, Dural Defects, Variform Anomalies External and Middle Ear
  • TB Case Number: 998
  • Comments: CSF space extension to geniculate ganglion
  • Gender: Female
  • Age(yrs.): 91
  • otologic_dx:

    Clinical:

    Progressive hearing loss, bilateral, presumed sensorineural and of genetic etiology

    Histological:

    1. Mild cochlear degeneration (outer hair cell loss in basal turn, mild patchy
    strial atrophy, mild basal spiral ganglion cell loss, spiral ligament

  • Title: Tympanomeningeal fissure, L 401
  • Chapter: Developmental Defects
  • Chapter section: CSF Leaks, Dural Defects, Variform Anomalies External and Middle Ear
  • TB Case Number: 145
  • Gender: Female
  • otologic_dx:

    1. Temporal bone, newborn, normal, left

    2. Membranous labyrinth, normal, left

    3. Bony labyrinth, normal, left

    4. Hemorrhage, recent, perilymphatic space, cochlear and vestibular labyrinths, left

    5. Styloid eminence, normal, left

    6. Tympanomeningeal

  • Title: Peritubal air cell, R-401
  • Chapter: Developmental Defects
  • Chapter section: CSF Leaks, Dural Defects, Variform Anomalies External and Middle Ear
  • TB Case Number: 1024
  • Comments: 94 yr old female showing a peritubal air cell that opens into the bony eustachian tube, anterior to the level of the tympanic membrane
  • Gender: Female
  • Age(yrs.): 95
  • otologic_dx:

    Clinical:

    1. Adult onset, progressive, bilateral sensorineural hearing loss, probably genetic in etiology

    Histopathologic:

    1. Stria vascularis atrophy, near total, affecting entire cochlear duct, bilateral, probably genetically determined

  • Title: Peritubal air cell, R-401
  • Chapter: Developmental Defects
  • Chapter section: CSF Leaks, Dural Defects, Variform Anomalies External and Middle Ear
  • TB Case Number: 1024
  • Comments: 94 yr old female showing a peritubal air cell that opens into the bony eustachian tube, anterior to the level of the tympanic membrane
  • Gender: Female
  • Age(yrs.): 95
  • otologic_dx:

    Clinical:

    1. Adult onset, progressive, bilateral sensorineural hearing loss, probably genetic in etiology

    Histopathologic:

    1. Stria vascularis atrophy, near total, affecting entire cochlear duct, bilateral, probably genetically determined

  • Title: Peritubal air cell, R-381-2
  • Chapter: Developmental Defects
  • Chapter section: CSF Leaks, Dural Defects, Variform Anomalies External and Middle Ear
  • TB Case Number: 1005
  • Comments: Showing opening of peritubal air cell into ET, anterior to tympanic membrane, 92 year old female.
  • Gender: Female
  • Age(yrs.): 92
  • otologic_dx:

    1. Mixed hearing loss, AU, predominantly sensorineural, due to presbycusis

  • Title: Peritubal air cell, R-381-2
  • Chapter: Developmental Defects
  • Chapter section: CSF Leaks, Dural Defects, Variform Anomalies External and Middle Ear
  • TB Case Number: 1005
  • Comments: Showing opening of peritubal air cell into ET, anterior to tympanic membrane, 92 year old female.
  • Gender: Female
  • Age(yrs.): 92
  • otologic_dx:

    1. Mixed hearing loss, AU, predominantly sensorineural, due to presbycusis

  • Title: R81 Occult Meningo-encephalocele
  • Chapter: Developmental Defects
  • Chapter section: CSF Leaks, Dural Defects, Variform Anomalies External and Middle Ear
  • TB Case Number: 939
  • Gender: Male
  • Age(yrs.): 75
  • otologic_dx:

    1. Cochleovestibular schwannoma, clinical, right

    2. Endolymphatic hydrops, secondary to #1, right

    3. Degeneration of hair cells and spiral ganglion cells, secondary to #1, right

    4. Eosinophilic staining of endolymphatic and perilymphatic spaces, secondary

  • Title: R81 Occult Meningo-encephalocele
  • Chapter: Developmental Defects
  • Chapter section: CSF Leaks, Dural Defects, Variform Anomalies External and Middle Ear
  • TB Case Number: 939
  • Gender: Male
  • Age(yrs.): 75
  • otologic_dx:

    1. Cochleovestibular schwannoma, clinical, right

    2. Endolymphatic hydrops, secondary to #1, right

    3. Degeneration of hair cells and spiral ganglion cells, secondary to #1, right

    4. Eosinophilic staining of endolymphatic and perilymphatic spaces, secondary

  • Title: R251 CSF Leak
  • Chapter: Developmental Defects
  • Chapter section: CSF Leaks, Dural Defects, Variform Anomalies External and Middle Ear
  • TB Case Number: 113
  • Gender: Male
  • Age(yrs.): 71
  • otologic_dx:

    1. Cerebrospinal fluid (CSF) otorrhea, post traumatic, delayed, left

    2. Meningitis, suppurative, complicating CSF otorrhea

    3. Abscess, brain, otogenic, temporal lobe, left

    4. Fracture, temporal bone, tegmen, tympanic, presumptive, left

    5. Myringotomy

  • Title: L141 CSF Leak
  • Chapter: Developmental Defects
  • Chapter section: CSF Leaks, Dural Defects, Variform Anomalies External and Middle Ear
  • TB Case Number: 113
  • Gender: Male
  • Age(yrs.): 71
  • otologic_dx:

    1. Cerebrospinal fluid (CSF) otorrhea, post traumatic, delayed, left

    2. Meningitis, suppurative, complicating CSF otorrhea

    3. Abscess, brain, otogenic, temporal lobe, left

    4. Fracture, temporal bone, tegmen, tympanic, presumptive, left

    5. Myringotomy

  • Title: L460 CSF Leak
  • Chapter: Developmental Defects
  • Chapter section: CSF Leaks, Dural Defects, Variform Anomalies External and Middle Ear
  • TB Case Number: 113
  • Gender: Male
  • Age(yrs.): 71
  • otologic_dx:

    1. Cerebrospinal fluid (CSF) otorrhea, post traumatic, delayed, left

    2. Meningitis, suppurative, complicating CSF otorrhea

    3. Abscess, brain, otogenic, temporal lobe, left

    4. Fracture, temporal bone, tegmen, tympanic, presumptive, left

    5. Myringotomy