Sigmoid

Temporal Bone Image Library

  • Title: High jugular bulb, L-451
  • Chapter: Anatomy
  • Chapter section: AICA, Jugular, Sigmoid, Vessels - Carotid
  • TB Case Number: 996
  • Gender: Male
  • Age(yrs.): 42
  • otologic_dx:

    Clinical:

    1. Sensorineural hearing loss, moderate, bilateral, sequel of pneumococcal meningitis

    Histopathologic:

    1. Loss of spiral ganglion cells, presumed secondary to cochlear neuritis from bacterial
    meningitis, bilateral.

    2. Atrophy of organ of Corti

  • Title: High jugular bulb, R-411
  • Chapter: Anatomy
  • Chapter section: AICA, Jugular, Sigmoid, Vessels - Carotid
  • TB Case Number: 972
  • Comments: high jugular bulb dehiscent into the hypotympanum in 92 yr old female, no symptoms
  • Gender: Female
  • Age(yrs.): 93
  • otologic_dx:

    Clinical:

    1. Sensorineural hearing loss, downsloping, consistent with presbycusis
    Histopathologic:

    2. Cochlear pathology, consistent with mixed presbycusis:

    a) Complete atrophy of organ of Corti, basal turn

    b) Partial loss of outer hair cells, middle and

  • Title: Jugular Megabulb, R- 476
  • Chapter: Anatomy
  • Chapter section: AICA, Jugular, Sigmoid, Vessels - Carotid
  • TB Case Number: 747
  • Gender: Female
  • Age(yrs.): 73
  • otologic_dx:

    1. Glomus jugulare tumor, temporal bone, right

    2. Mastoid, surgical defect, right

    3. Radiation reaction of bone and fibrous tissue involving mastoid and the posterior part of the otic capsule, right

    4. Spiral and annular ligaments, irradiation injury, rig

  • Title: Jugular Megabulb, R-441
  • Chapter: Anatomy
  • Chapter section: AICA, Jugular, Sigmoid, Vessels - Carotid
  • TB Case Number: 689
  • Gender: Male
  • Age(yrs.): 58
  • otologic_dx:

    1) Chronic suppurative otitis media and mastoiditis with erosion of the tegmen tympani and extension into the middle cranial fossa, left

    2) Extradural abscess, middle cranial fossa, left

    3) Fibro-osseous obliteration, jugular bulb, inactive, not recent, l

  • Title: Jugular Megabulb, R-441
  • Chapter: Anatomy
  • Chapter section: AICA, Jugular, Sigmoid, Vessels - Carotid
  • TB Case Number: 689
  • Gender: Male
  • Age(yrs.): 58
  • otologic_dx:

    1) Chronic suppurative otitis media and mastoiditis with erosion of the tegmen tympani and extension into the middle cranial fossa, left

    2) Extradural abscess, middle cranial fossa, left

    3) Fibro-osseous obliteration, jugular bulb, inactive, not recent, l

  • Title: Jugular Megabulb, R-472
  • Chapter: Anatomy
  • Chapter section: AICA, Jugular, Sigmoid, Vessels - Carotid
  • TB Case Number: 689
  • Gender: Male
  • Age(yrs.): 58
  • otologic_dx:

    1) Chronic suppurative otitis media and mastoiditis with erosion of the tegmen tympani and extension into the middle cranial fossa, left

    2) Extradural abscess, middle cranial fossa, left

    3) Fibro-osseous obliteration, jugular bulb, inactive, not recent, l

  • Title: High Jugular Vein, L-390
  • Chapter: Anatomy
  • Chapter section: AICA, Jugular, Sigmoid, Vessels - Carotid
  • TB Case Number: 729
  • Gender: Female
  • Age(yrs.): 80
  • otologic_dx:

    1. Otosclerosis with stapes fixation, bilateral

    2. Presbycusis, neural and strial, bilateral

    3. Jugular bulb, anomalous, left

    4. Mastoids, small, bilateral

  • Title: Anomalous Jugular Bulb, L 371
  • Chapter: Anatomy
  • Chapter section: AICA, Jugular, Sigmoid, Vessels - Carotid
  • TB Case Number: 6
  • Gender: Female
  • Age(yrs.): 69
  • otologic_dx:

    1. Meniere’s disease, left

    2. Endolymphatic hydrops, severe, left

    3. Presbycusis, mixed, neural and strial, bilateral

    4. Focal atrophy, tectorial membrane, basal turn, right

    5. High jugular bulb, left

  • Title: L431 High Jugular Bulb
  • Chapter: Anatomy
  • Chapter section: AICA, Jugular, Sigmoid, Vessels - Carotid
  • TB Case Number: 132
  • Gender: Female
  • Age(yrs.): 80
  • otologic_dx:

    1. Tympanic membrane, perforation, anteroinferior, bilateral

    2. Cholesteatoma, mesotympanum, bilateral

    3. Cholesteatoma, epitympanum, bilateral

    4. Sclerosis, fibro-osseous, mastoid, bilateral

    5. Tympanomastoiditis, acute, suppurative and granular, right

  • Title: L431 High Jugular Bulb
  • Chapter: Anatomy
  • Chapter section: AICA, Jugular, Sigmoid, Vessels - Carotid
  • TB Case Number: 132
  • Gender: Female
  • Age(yrs.): 80
  • otologic_dx:

    1. Tympanic membrane, perforation, anteroinferior, bilateral

    2. Cholesteatoma, mesotympanum, bilateral

    3. Cholesteatoma, epitympanum, bilateral

    4. Sclerosis, fibro-osseous, mastoid, bilateral

    5. Tympanomastoiditis, acute, suppurative and granular, right

  • Title: AICA, R 181
  • Chapter: Anatomy
  • Chapter section: AICA, Jugular, Sigmoid, Vessels - Carotid
  • TB Case Number: 445
  • Gender: Male
  • Age(yrs.): 88
  • otologic_dx:

    1. Meniere’s disease, right

    2. Cochlear lesion, apical, right

    3. Endolymphatic duct, fibrosis, right

    4. Endolymphatic sac, fibrosis, right

    5. Otitis media, right

    6. Hemorrhage, bone marrow, agonal, left

    7. Neural atrophy, primary, bilateral

  • Title: AICA, R-231
  • Chapter: Anatomy
  • Chapter section: AICA, Jugular, Sigmoid, Vessels - Carotid
  • Title: AICA, R-231
  • Chapter: Anatomy
  • Chapter section: AICA, Jugular, Sigmoid, Vessels - Carotid
  • Title: AICA, L-191
  • Chapter: Anatomy
  • Chapter section: AICA, Jugular, Sigmoid, Vessels - Carotid
  • TB Case Number: 625
  • Gender: Female
  • Age(yrs.): 96
  • otologic_dx:

    Presbycusis, characterized by spiral ligament atrophy

  • Title: AICA, L 121
  • Chapter: Anatomy
  • Chapter section: AICA, Jugular, Sigmoid, Vessels - Carotid
  • TB Case Number: 76
  • Gender: Male
  • Age(yrs.): 87
  • otologic_dx:

    1. Cupulolithiasis, posterior semicircular canal, right

    2. Otitis media, acute, mild, agonal, left

    3. Spiral ligament, atrophy, severe, apical region, bilateral

    4. Stria vascularis, atrophy, apical region, patchy, bilateral

    5. Artifact, postmortem, co

  • Title: AICA, L 131
  • Chapter: Anatomy
  • Chapter section: AICA, Jugular, Sigmoid, Vessels - Carotid
  • TB Case Number: 76
  • Gender: Male
  • Age(yrs.): 87
  • otologic_dx:

    1. Cupulolithiasis, posterior semicircular canal, right

    2. Otitis media, acute, mild, agonal, left

    3. Spiral ligament, atrophy, severe, apical region, bilateral

    4. Stria vascularis, atrophy, apical region, patchy, bilateral

    5. Artifact, postmortem, co

  • Title: AICA, L 239
  • Chapter: Anatomy
  • Chapter section: AICA, Jugular, Sigmoid, Vessels - Carotid
  • TB Case Number: 76
  • Gender: Male
  • Age(yrs.): 87
  • otologic_dx:

    1. Cupulolithiasis, posterior semicircular canal, right

    2. Otitis media, acute, mild, agonal, left

    3. Spiral ligament, atrophy, severe, apical region, bilateral

    4. Stria vascularis, atrophy, apical region, patchy, bilateral

    5. Artifact, postmortem, co

  • Title: AICA, L 187
  • Chapter: Anatomy
  • Chapter section: AICA, Jugular, Sigmoid, Vessels - Carotid
  • TB Case Number: 220
  • Gender: Male
  • Age(yrs.): 87
  • otologic_dx:

    1. Presbycusis, neural, strial and sensory, severe, bilateral

    2. Fracture, transverse, petrous bone, right

    3. Stapes, subluxation, trauma, right

    4. Utricle, tears, trauma, right

    5. Posterior canal, fibrosis, perilymphatic space, trauma, right

    6. Bony laby

  • Title: AICA, L 187
  • Chapter: Anatomy
  • Chapter section: AICA, Jugular, Sigmoid, Vessels - Carotid
  • TB Case Number: 220
  • Gender: Male
  • Age(yrs.): 87
  • otologic_dx:

    1. Presbycusis, neural, strial and sensory, severe, bilateral

    2. Fracture, transverse, petrous bone, right

    3. Stapes, subluxation, trauma, right

    4. Utricle, tears, trauma, right

    5. Posterior canal, fibrosis, perilymphatic space, trauma, right

    6. Bony laby

  • Title: AICA, L 221
  • Chapter: Anatomy
  • Chapter section: AICA, Jugular, Sigmoid, Vessels - Carotid
  • TB Case Number: 810
  • Gender: Male
  • Age(yrs.): 84
  • otologic_dx:

    Presbycusis, strial and sensory