Mammo hookwire localization
From the case:
CT temporal bone sagittal - labeling questions
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The labeled structures are (excluding the correct side):
- sigmoid groove
- cartilaginous external auditory (acoustic) canal
- mastoid air cell
- zygomatic process of temporal bone
- mandibular fossa of temporal bone
- mastoid process
- mastoid antrum
- aditus ad antrum
- short process of the incus
- temporomandibular joint
- scutum
- osseous external auditory (acoustic) canal
- tegmen tympani
- head of the malleus
- epitympanum
- incudomalleolar joint
- mastoid segment of chorda tympani
- occipitomastoid suture
- mandibular condyle
- posterior (second) genu of the facial nerve
- long process of the incus
- articular eminence of temporal bone
- manubrium of the malleus
- mastoid segment of the facial nerve
- posterior semicircular canal
- tympanic segment of the facial nerve
- stylomastoid foramen
- superior semicircular canal
- stapes
- lateral semicircular canal
- mesotympanum
- utricle of the vestibule
- anterior (first) genu of the facial nerve
- oval window
- saccule of the vestibule
- tympanic membrane
- vestibular aqueduct
- cochlear promontory
- round window niche
- labyrinthine segment of the facial nerve
- hypotympanum
- apical turn of the cochlea
- tensor tympani muscle
- middle turn of the cochlea
- styloid process
- basal turn of the cochlea
- carotid plate
- internal auditory (acoustic) canal (meatus)
- sphenozygomatic suture
- pars vascularis of jugular foramen
- cochlear aqueduct
- porus acousticus
- carotid canal
- pharyngotympanic tube
- pars nervosa of jugular foramen
- occipital condyle
- lateral mass of atlas (C1)
- atlanto-occipital joint
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The same normal temporal bone CT without labels for reference.
Case Discussion
The labeled structures are (excluding the correct side):
- sigmoid groove
- cartilaginous external auditory (acoustic) canal
- mastoid air cell
- zygomatic process of temporal bone
- mandibular fossa of temporal bone
- mastoid process
- mastoid antrum
- aditus ad antrum
- short process of the incus
- temporomandibular joint
- scutum
- osseous external auditory (acoustic) canal
- tegmen tympani
- head of the malleus
- epitympanum
- incudomalleolar joint
- mastoid segment of chorda tympani
- occipitomastoid suture
- mandibular condyle
- posterior (second) genu of the facial nerve
- long process of the incus
- articular eminence of temporal bone
- manubrium of the malleus
- mastoid segment of the facial nerve
- posterior semicircular canal
- tympanic segment of the facial nerve
- stylomastoid foramen
- superior semicircular canal
- stapes
- lateral semicircular canal
- mesotympanum
- utricle of the vestibule
- anterior (first) genu of the facial nerve
- oval window
- saccule of the vestibule
- tympanic membrane
- vestibular aqueduct
- cochlear promontory
- round window niche
- labyrinthine segment of the facial nerve
- hypotympanum
- apical turn of the cochlea
- tensor tympani muscle
- middle turn of the cochlea
- styloid process
- basal turn of the cochlea
- carotid plate
- internal auditory (acoustic) canal (meatus)
- sphenozygomatic suture
- pars vascularis of jugular foramen
- cochlear aqueduct
- porus acousticus
- carotid canal
- pharyngotympanic tube
- pars nervosa of jugular foramen
- occipital condyle
- lateral mass of atlas (C1)
- atlanto-occipital joint