section 3 cranial anatomy and pathology
TRANSCRIPT
Cranial Anatomy and Pathology
Image 1
Section 3
Typical Causation: Trauma
• Open head injury- dura mater pierced
• Closed head injury-dura mater intact
• Contrecoup effect-brain injury at side of impact, but could be on opposite side
• Most common reason for youths
This slide is essentially an FYI. However, it does provide insight to the concept of closed versus open head injuries.
Image 2
Anatomy
Calcified choroid plexus
Calcified pineal gland
Axial CT Image
Image 3
When blood from a trauma irritates brain tissues, it causes swelling. This is known as cerebral edema. The pooled blood
collects into a mass called a hematoma.
Axial CT Image Image 4
Bilateral intraventricular hemorrhage of the lateral ventricles
Anterior horn of lateral ventricle
Posterior horn of lateral ventricle
Third ventricle
Image 5
Anatomy
Falx cerebri
Frontal horns of lateral ventricles
Third ventricleAxial CT Image
Image 6
An Axial MRI Image
longitudinal fissure/ interhemispheric fissure.The falx cerebri, a dural brain covering, lies within the medial longitudinal fissure.
Ignore the yellow arrows.
Image 7
G
G
G = gyri
The “star burst” effect with radiating rays from the star center seen in this coronal CT image is referred to as a “beam hardening artifact.”
Image 8
Lens
Medial & Lateral Rectus
Globe
Optic Nerve
Retro Bulba Fat
Axial CT Images
Axial CT ImageImage 9
Axial CT Image
Image 10
Limit your review of this slide to the labeled/identified anatomy
Axial CT Image
Image 11
These are images of an Egyptian Mummy. What is missing and why is it missing?
Image 12
Limit your review to the labeled/ identified anatomy
An MRI image
Image 13
An Axial MRI image
Nasal SeptumNasal Bone
Ethmoid Sinus
Sphenoid Sinus
Eye/globe
MaxillarySinus
Clivus
Foramen Ovale
Carotid Canal
Posterior Fossa
Image 14
Edema of retro bulba fat and surrounding fat within the orbit (encircled in red)
The yellow arrow points to appearance of normal fat.
Image 15
Soft tissue window and bone window seen in an Axial CT scan
Image 16
Vertex fracture as seen in an axial CT scan
Image 17
Fracture in the base of the skull as seen in an axial CT scan.
Image 18
A pilot scan allows for correct position check and establishes the range if slices.
Image 19
The red arrows are pointing to______________ in this axial ct scan?
Image 20