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Surgical Anatomy of the EarTori Lewis Fibonacci Web Studio2020-08-19T21:06:52-07:00
Coronal perspective of the anatomy of the ear which is the illustration used on the cover of this Atlas.

Overview of Temporal Bone

Anatomy of the pinna (auricle).

External Ear

Anatomy of the middle and inner ear.

Middle Ear & Mastoid

Anatomy of the Eustachian tube.

Eustachian Tube

Cochlea in mid-modiolar section.

Auditory System

The three semicircular canals, which sense angular accelerations in the three dimensions, are mutually perpendicular.

Vestibular System

Anatomy of the nerves traversing the internal auditory canal as seen from a retrosigmoid craniotomy perspective. Note the 90-degree rotation of the vestibular and cochlear nerve components of the eighth nerve between inner ear and brainstem entry. C, cochlear nerve; CN, cochlear nerve; IV, inferior vestibular nerve; VN, vestibular nerve; SV, superior vestibular nerve; 7, facial nerve.

Internal Auditory Canal and Cerebellopontine Angle

An early squamous cell carcinoma of the ear canal involving the anterior and inferior aspects of the canal. The lesion is still superficial.

Ear Tumor Anatomy

  • Welcome to Otologic Surgery Atlas
  • Surgical Anatomy of the Ear
    • Overview of Temporal Bone
    • External Ear
    • Middle Ear & Mastoid
    • Eustachian Tube
    • Auditory System
    • Vestibular System
    • Internal Auditory Canal and Cerebellopontine Angle
    • Ear Tumor Anatomy
  • Fundamentals of Ear Surgery
    • Patient Positioning
    • Microinstrument Hand Positioning
    • Ergonomics
    • Postauricular Incision
    • Postauricular Canal Flap Design
    • Endaural Incision
    • Incision Closure
  • External Ear
    • Otoplasty
    • Microtia Repair
    • Repair of Congenital Aural Atresia
    • Postauricular Meatoplasty
    • Endaural Meatoplasty
    • Exostoses of the Ear Canal
    • Anterior Canalplasty
    • Preauricular Cyst Excision
  • Stapes Surgery
    • Overview
    • Exposure
    • Stapedotomy
    • Stapedectomy
    • Challenges
    • Deficient Incus
    • Revision Stapes Surgery
    • Tympanosclerosis
  • Tympanoplasty
    • Tympanic Membrane Perforations
    • Fascia Harvesting
    • Tragal Cartilage Harvesting
    • Medial Graft Tympanoplasty
    • Anterior Perforation Repair
    • Lateral Graft Tympanoplasty
    • Butterfly Tympanoplasty
    • Eustachian Tuboplasty
  • Ossiculoplasty
    • Patterns of Ossicular Deficiency
    • Autologous Ossiculoplasty
    • Prosthetic Ossiculoplasty
    • Ossiculoplasty Placement Technique
    • Trans-facial Recess Ossiculoplasty
    • Medialized Malleus
    • Staging Ossiculoplasty
  • Mastoidectomy
    • Intact Canal Wall Mastoidectomy
    • Anatomical Variation in Mastoidectomy
    • Complications of Mastoidectomy
    • Facial Recess Approach
    • The Facial Nerve in Mastoidectomy
    • Mastoid Obliteration
  • Cholesteatoma
    • Growth Patterns of Cholesteatoma
    • Canal Wall Down Mastoidectomy
    • Microdissection of Cholesteatoma
    • Retrograde Technique
    • Epitympanum Repair
    • The Facial Nerve in Cholesteatoma
    • Sinus Tympani & Facial Recess in Cholesteatoma
    • Anterior Epitympanic Cholesteatoma
    • Semicircular Canal Fistula in Cholesteatoma
    • Ossicles in Cholesteatoma
    • Congenital Cholesteatoma
  • Facial Nerve
    • Anatomy of the Facial Nerve
    • Repair of the Facial Nerve
    • Hypoglossal–Facial Anastomosis for Facial Reanimation
    • Hypoglossal-Trigeminal-Facial Anastomoses
    • Gracilis Microvascular Facial Reanimation
    • Static and Dynamic Slings for Facial Reanimation
  • Vestibular Surgery
    • Endolymphatic Sac Surgery
    • Labyrinthectomy
    • Superior Semicircular Canal Dehiscence
  • Cochlear Implants
    • Cochlear Implant Surgery
    • Cochlear Implant Surgical Variations
  • Temporal Bone Fractures, Encephaloceles, and Cerebrospinal Fluid Leaks
    • Temporal Bone Fractures
    • Encephalocoeles
    • Cerebrospinal Fluid Leaks
    • Ear Canal Closure
  • Temporal Bone Resection
    • Lateral Temporal Bone Resection
    • Extended Temporal Bone Resection
  • Petrous Apex
    • Petrous Apicotomy
    • Petrous Apicectomy
    • Transsphenoidal Approach to Petrous Apex
  • Pulsatile Tinnitus
    • Pulsatile Tinnitus of Dural Sinus Origin
    • Pulsatile Tinnitus of Carotid and Jugular Bulb Origin
  • Appendix: Educational Handouts for Patients

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