HEAD AND NECK BLOCK 2: CT SERIES, X-RAYS AND SCANS 2011

CT of Head LABELING BY GIRI SURA (JCESOM CLASS 2012)

SCOUT VIEW FOR ORIENTATION ORBIT NASAL CAVITY PLANE OF SECTION

MEDIAL AND LATERAL PTERYGOID PLATES EXTERNAL AUDITORY MEATUS EXTERNAL AUDITORY MEATUS

Ramus of mandible Lateral pterigoid m Lateral pterigoid plate Medial pterigoid plate Maxillary sinus Nasal septum Mastoid process Spinal card Styloid process ?

Projections that increase surface area called Nasal Conchae = Turbinates

Ramus of mandible Lateral pterigoid m Lateral pterigoid plate Medial pterigoid plate Maxillary sinus Nasal septum Mastoid air cells Spinal card Styloid process

Coronoid process Neck of mandible Lateral pterigoid m Lateral pterigoid plate Medial pterigoid plate Maxillary sinus Nasal septum Mastoid air cells Styloid process Spinal card Foraman magnum Vertebral a

Coronoid process Neck of mandible Mastoid air cells Lateral pterigoid m Lateral pterigoid plate Medial pterigoid plate Maxillary sinus Nasal septum Spinal cord Foraman magnum Vertebral a

Pterygopalatine Fossa Neck of mandible Lateral pterigoid m Lateral pterigoid plate Medial pterigoid plate Maxillary sinus Nasal septum Mastoid air cells Foraman magnum Vertebral a

Each of the Le Fort fractures has at least one unique component that is easily recognizable: I, the anterolateral margin of the nasal fossa II, the inferior orbital rim III, the zygomatic arch. LE FORT FRACTURES OF FACE I II III

External auditory meatus Mastoid air cells Medulla oblangata Nasal septum Temporalis m Trapezius m Head of mandible Temporo- madibular joint Globe Vertebral a

External auditory meatus Mastoid air cells Medulla oblongata Nasal septum Temporalis m Cerebellar hemisphere Trapezius m

Auditory tube External auditory meatus Lacrimal gland Mastoid air cells Medulla oblongata Temporalis m Cerebellar hemisphere Trapezius m Sigmoid sinus Lens Globe

Auditory tube Lacrimal gland Mastoid air cells Medulla oblangata Medial Rectus Temporalis m Cerebellar hemisphere Trapezius m Sigmoid sinus Basilar a Globe

Auditory tube Internal occipital protuberance Lacrimal gland Mastoid air cells Medulla oblangata Medial Rectus Temporalis m Cerebellar hemisphere Trapezius m Sigmoid sinus Basilar a Globe

Internal occipital protuberance Frontal sinus Lacrimal gland Mastoid air cells Medulla oblangata Petrous bone Crista galli Temporalis m Temporal lobe Cerebellar hemisphere Trapezius m Sigmoid sinus Medial Rectus Basillar a

Internal occipital protuberance Frontal sinus Lacrimal gland Mastoid air cells Medulla oblangata Petrous bone Optic nerve Crista galli Temporalis m Temporal lobe Cerebellar hemisphere Trapezius m Sigmoid sinus Basillar a

Internal occipital protuberance Frontal sinus Lacrimal gland Pons Mastoid air cells Petrous bone Optic nerve Crista galli Temporalis m Temporal lobe Cerebellar hemisphere Trapezius m Sigmoid sinus

Internal occipital protuberance Frontal sinus Lacrimal gland Pons Mastoid air cells Nasal septum Petrous bone Optic nerve Crista galli Temporalis m Temporal lobe Cerebellar hemisphere Trapezius m Sigmoid sinus

Crista galli Internal occipital protuberance Frontal sinus Pons Mastoid air cells Petrous bone Sphenoidal sinus Temporalis m Temporal lobe Cerebellar hemisphere Trapezius m Sigmoid sinus

Crista galli Frontal sinus Pons Mastoid air cells Sphenoidal sinus Temporalis m Temporal lobe Cerebellar hemisphere Sigmoid sinus Dorsum sellae Internal occipital protuberance

Crista galli Frontal sinus Pons Mastoid air cells Sella tursica Temporalis m Temporal lobe Cerebellar hemisphere Sigmoid sinus Dorsum sellae Internal occipital protuberance

GROSS ANATOMY/RADIOLOGY LIBRARY: Many links to excellent websites for learning and studying Images

6 Lateral view of skull 1. Ramus of mandible 2. Styloid process of temporal bone

PA VIEW OF SKULL Posteroanterior view of skull 1) Nasal septum 2) Mastoid air cells 3) Lambdoid suture (don't confuse with fracture)

AP view of skull Antero- posterior film of skull 1. Transverse process of C2 2. Ramus of mandible 3. Odontoid process (dens) of C2

Lateral View of Neck (Note: 2 and 4 are more apparent on original film in lab) 1. Trachea 2. Thyroid cartilage 3. Hyoid bone 4. Epiglottis 5. Body of C2 6. Dens of C2 7. Anterior arch of atlas 8. Posterior arch of atlas 9. Spines of C2

Lateral View of Skull 4 1. External auditory meatus 2. Mastoid air cells 3. Auricle 4. Calcified pineal body 5. Sella turcica 6. Inner table of skull bone 7. Outer table of skull bone 8. Internal occipital protuberance 9. Sphenoid air sinus

CAROTID ANGIOGRAM 1- Common Carotid Artery 2- Superior Thyroid Artery 3- Lingual Artery 4- Facial Artery 5- Occipital Artery 6- Maxillary Artery 7- Superficial Temporal Artery 8- Carotid Siphon

CT HORIZONTAL SECTION OF ORBIT 5 1- Medial Rectus 2- Lens 3- Lateral Rectus 4- Optic Nerve 5- Temporalis muscle

CT Horizontal Pterygoid Plate All

CT Horizontal Pterygoid Plate Part 1 6- Lateral Pterygoid Muscle 7- Neck of Mandible 8- Coronoid Process of Mandible

CT Horizontal Pterygoid Plate Part 2 1- Nasal Septum 2- Maxillary Sinus 3- Medial Pterygoid Plate 4- Lateral Pterygoid Plate

CT Horizontal Pterygoid Plate Part 3 5- Ramus of Mandible

CT Horizontal Pterygoid Plate (three preceding slides) 1- Nasal Septum 2- Maxillary Sinus 3- Medial Pterygoid Plate 4- Lateral Pterygoid Plate 5- Ramus of Mandible 6- Lateral Pterygoid Muscle 7- Neck of Mandible 8- Coronoid Process of Mandible

Arch of Aorta Common Carotid Artery Brachiocephalic Trunk Common Carotid Artery Vertebral Artery Vertebral Artery MRA - Magnetic Resonance Angiography - Blood Supply to Head

MRA - Magnetic Resonance Angiography - Blood Supply to Head - Left side only Anterior view Arch of Aorta Common Carotid Artery Vertebral Artery

Rotate to Right MRA - Magnetic Resonance Angiography - Blood Supply to Head - Left side only

Rotate to Right MRA - Magnetic Resonance Angiography - Blood Supply to Head - Left side only

Rotate to Right MRA - Magnetic Resonance Angiography - Blood Supply to Head - Left side only

Rotate to Right MRA - Magnetic Resonance Angiography - Blood Supply to Head - Left side only

Rotate to Right Arch of Aorta Common Carotid Artery Vertebral Artery MRA - Magnetic Resonance Angiography - Blood Supply to Head - Left side only

Bifurcation Common Carotid Artery Vertebral Artery Internal Carotid Artery External Carotid Artery Lingual Artery Facial Artery Maxillary Artery Occipital Artery Left side only High Mag