BRAIN STEM AND CEREBELLUM CNS Block Radiology Lecture
![BRAIN STEM AND CEREBELLUM. . (CNS Block, Radiology) BRAIN STEM AND CEREBELLUM. . (CNS Block, Radiology)](https://slidetodoc.com/presentation_image/4419f0e759be142abfc206f41a7ad9de/image-1.jpg)
BRAIN STEM AND CEREBELLUM. . (CNS Block, Radiology)
![Lecture Objectives. . Students at the end of the lecture will be able to: Lecture Objectives. . Students at the end of the lecture will be able to:](http://slidetodoc.com/presentation_image/4419f0e759be142abfc206f41a7ad9de/image-2.jpg)
Lecture Objectives. . Students at the end of the lecture will be able to: • Identify radiological anatomy of brain stem and cerebellum. • Compares CT and MRI imaging of brain stem and cerebellum. • Recognize the imaging findings in common diseases involving brain stem and cerebellum.
![Brain Divisions. . Brain Divisions. .](http://slidetodoc.com/presentation_image/4419f0e759be142abfc206f41a7ad9de/image-3.jpg)
Brain Divisions. .
![Brain Stem. . • Three parts from superior to inferior: 1 midbrain 2 pons Brain Stem. . • Three parts from superior to inferior: 1 midbrain 2 pons](http://slidetodoc.com/presentation_image/4419f0e759be142abfc206f41a7ad9de/image-4.jpg)
Brain Stem. . • Three parts from superior to inferior: 1 midbrain 2 pons 3 medulla oblongata 1 2 3
![Brain Stem. . 1 2 3 Brain Stem. . 1 2 3](http://slidetodoc.com/presentation_image/4419f0e759be142abfc206f41a7ad9de/image-5.jpg)
Brain Stem. . 1 2 3
![Midbrain. . Radiological Features: CT+ • At the level of circle of willis • Midbrain. . Radiological Features: CT+ • At the level of circle of willis •](http://slidetodoc.com/presentation_image/4419f0e759be142abfc206f41a7ad9de/image-6.jpg)
Midbrain. . Radiological Features: CT+ • At the level of circle of willis • Anteriorly two cerebral peduncles separated by interpeduncular fossa • Posteriorly four rounded prominences (superior and inferior colliculi) MRI T 2 WI
![Midbrain. . MRI Sagittal T 1 WI MRI axial T 2 WI 1 4 Midbrain. . MRI Sagittal T 1 WI MRI axial T 2 WI 1 4](http://slidetodoc.com/presentation_image/4419f0e759be142abfc206f41a7ad9de/image-7.jpg)
Midbrain. . MRI Sagittal T 1 WI MRI axial T 2 WI 1 4 3 2 2 1 2 3 4 superior colliculus inferior colliculus cerebral peduncle interpeduncular cistern
![Pons. . Radiological Features: • Basilar artery lies in groove anteriorly • Posterior surface Pons. . Radiological Features: • Basilar artery lies in groove anteriorly • Posterior surface](http://slidetodoc.com/presentation_image/4419f0e759be142abfc206f41a7ad9de/image-8.jpg)
Pons. . Radiological Features: • Basilar artery lies in groove anteriorly • Posterior surface of the pons forms the upper part of the floor of the 4 th ventricle. • Bony anterior relation: clivus centrally and petrous temporal bones laterally CT+ Petrous bone Basilar artery
![Pons. . MRI Sagittal T 1 WI MRI axial T 2 WI 2 3 Pons. . MRI Sagittal T 1 WI MRI axial T 2 WI 2 3](http://slidetodoc.com/presentation_image/4419f0e759be142abfc206f41a7ad9de/image-9.jpg)
Pons. . MRI Sagittal T 1 WI MRI axial T 2 WI 2 3 p p 1 P pons 1 4 th ventricle 2 basilar artery 3 middle cerebellar peduncle 1
![Medulla oblongata. . Radiological Features: • The ventral median fissure is seen anteriorly with Medulla oblongata. . Radiological Features: • The ventral median fissure is seen anteriorly with](http://slidetodoc.com/presentation_image/4419f0e759be142abfc206f41a7ad9de/image-10.jpg)
Medulla oblongata. . Radiological Features: • The ventral median fissure is seen anteriorly with the pyramid laterally • The 4 th ventricle is seen posteriorly CT+ MRI axial T 2 WI medulla
![Cerebellum. . Radiological Features: • On axial Ct & MRI the cerebellum is separated Cerebellum. . Radiological Features: • On axial Ct & MRI the cerebellum is separated](http://slidetodoc.com/presentation_image/4419f0e759be142abfc206f41a7ad9de/image-11.jpg)
Cerebellum. . Radiological Features: • On axial Ct & MRI the cerebellum is separated from the pons by the 4 th ventricle and connected to the pons on each side by middle cerebellar peduncle, it is bounded anteriorly by petrous temporal bone CT+ p Petrous bone cerebellum
![Cerebellum. . Cerebellum. .](http://slidetodoc.com/presentation_image/4419f0e759be142abfc206f41a7ad9de/image-12.jpg)
Cerebellum. .
![Cerebellum. . Radiological Features: • MRI axial T 2 WI Cerebellum is connected to Cerebellum. . Radiological Features: • MRI axial T 2 WI Cerebellum is connected to](http://slidetodoc.com/presentation_image/4419f0e759be142abfc206f41a7ad9de/image-13.jpg)
Cerebellum. . Radiological Features: • MRI axial T 2 WI Cerebellum is connected to the brainstem by three pairs of cerebellum peduncles: Superior. . connected to the midbrain Middle. . . connected to the pons inferior. . . connected to medulla oblongata vermis • Two cerebellar hemisphere with midline vermis tonsil axial CT tonsil MRI sagittal T 1 WI
![Common diseases of brainstem & cerebellum. . CT MRI axial FLAIR Hyperdense basilar artery Common diseases of brainstem & cerebellum. . CT MRI axial FLAIR Hyperdense basilar artery](http://slidetodoc.com/presentation_image/4419f0e759be142abfc206f41a7ad9de/image-14.jpg)
Common diseases of brainstem & cerebellum. . CT MRI axial FLAIR Hyperdense basilar artery Acute infarction due to basilar artery thrombosis MRI axial T 2 WI
![Common diseases of brainstem & cerebellum. . Sag MRI T 1 WI axial MRI Common diseases of brainstem & cerebellum. . Sag MRI T 1 WI axial MRI](http://slidetodoc.com/presentation_image/4419f0e759be142abfc206f41a7ad9de/image-15.jpg)
Common diseases of brainstem & cerebellum. . Sag MRI T 1 WI axial MRI T 2 WI Brain stem glioma axial MRI T 1 WI contrast
![Common diseases of brainstem & cerebellum. . Sag MRI T 1 WI contrast axial Common diseases of brainstem & cerebellum. . Sag MRI T 1 WI contrast axial](http://slidetodoc.com/presentation_image/4419f0e759be142abfc206f41a7ad9de/image-16.jpg)
Common diseases of brainstem & cerebellum. . Sag MRI T 1 WI contrast axial MRI T 1 WI contrast Ependymoma Coronal MRI T 1 WI contrast
![Common diseases of brainstem & cerebellum. . Sag MRI T 1 WI axial MRI Common diseases of brainstem & cerebellum. . Sag MRI T 1 WI axial MRI](http://slidetodoc.com/presentation_image/4419f0e759be142abfc206f41a7ad9de/image-17.jpg)
Common diseases of brainstem & cerebellum. . Sag MRI T 1 WI axial MRI T 2 WI Coronal MRI T 1 WI contrast Hemangioblastoma
![Common diseases of brainstem & cerebellum. . CT Sag MRI T 1 WI axial Common diseases of brainstem & cerebellum. . CT Sag MRI T 1 WI axial](http://slidetodoc.com/presentation_image/4419f0e759be142abfc206f41a7ad9de/image-18.jpg)
Common diseases of brainstem & cerebellum. . CT Sag MRI T 1 WI axial MRI T 2 WI Cavernous angioma axial MRI SWI
![Reference book and the relevant page numbers. . • Stephanie Ryan, “Anatomy for Diagnostic Reference book and the relevant page numbers. . • Stephanie Ryan, “Anatomy for Diagnostic](http://slidetodoc.com/presentation_image/4419f0e759be142abfc206f41a7ad9de/image-19.jpg)
Reference book and the relevant page numbers. . • Stephanie Ryan, “Anatomy for Diagnostic imaging”, 2 nd Edition, Pages 61 -66 • Jamie Weir, Peter Abraham, “Imaging Atlas of Human Anatomy” 3 rd Edition, Pages 34 -41 • Peter Armstrong, “diagnostic imaging ”, 5 th Edition, Pages (396 -404)
![Thank You (CNS Block, Radiology) Thank You (CNS Block, Radiology)](http://slidetodoc.com/presentation_image/4419f0e759be142abfc206f41a7ad9de/image-20.jpg)
Thank You (CNS Block, Radiology)
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