The Common Vein

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Aqueductal Stenosis



The T2 weighted MRI images show dilated lateral ventricles (a), frontal horns and occipital horns (b), temporal horns (c) and 4th ventricle (d) consistent with the known diagnosis of aqueductal stenosis CODE brain lateral ventricles frontal horns occipital horns atria body of temporal horns 4th ventricle aqueduct of Sylvius fx dilated enlarged distended dx hydrocephalus aqueductal stenosis
Courtesy Philips Medical Systems 92408b.8




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Aqueductal Stenosis



The T2 weighted MRI images show dilated lateral ventricles (a), frontal horns and occipital horns (b), temporal horns (c) and 4th ventricle (d) consistent with the known diagnosis of aqueductal stenosis CODE brain lateral ventricles frontal horns occipital horns atria body of temporal horns 4th ventricle aqueduct of Sylvius fx dilated enlarged distended dx hydrocephalus aqueductal stenosis
Courtesy Philips Medical Systems 92408b.8




)

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The T2 weighted MRI images show dilated lateral ventricles (a), frontal horns and occipital horns (b), temporal horns (c) and 4th ventricle (d) consistent with the known diagnosis of aqueductal stenosis CODE brain lateral ventricles frontal horns occipital horns atria body of temporal horns 4th ventricle aqueduct of Sylvius fx dilated enlarged distended dx hydrocephalus aqueductal stenosis
Courtesy Philips Medical Systems 92408b.8

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The T2 weighted MRI images show dilated lateral ventricles (a), frontal horns and occipital horns (b), temporal horns (c) and 4th ventricle (d) consistent with the known diagnosis of aqueductal stenosis CODE brain lateral ventricles frontal horns occipital horns atria body of temporal horns 4th ventricle aqueduct of Sylvius fx dilated enlarged distended dx hydrocephalus aqueductal stenosis
Courtesy Philips Medical Systems 92408b.8

)

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Aqueductal Stenosis
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Aqueductal Stenosis
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Age related AtrophyTemporal Horns become Visible (d)



The CT scan of this 92 year old man reveals normal involutional change of the brain including perivntricular lucency(a)suggestive of microangiopathic change, mild dilatation of the ventricles (b) with deepening of the sulci and prominence of the gyri (abc) and ability to identify the temporal horns (d), all signs of brain atrophy.  Note also the normal calcification of the choroid plexus in the atria (c) which is found very commonly even in young patients.
Image Courtesy Ashley Davidoff MD 75932c01




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Age related AtrophyTemporal Horns become Visible (d)



The CT scan of this 92 year old man reveals normal involutional change of the brain including perivntricular lucency(a)suggestive of microangiopathic change, mild dilatation of the ventricles (b) with deepening of the sulci and prominence of the gyri (abc) and ability to identify the temporal horns (d), all signs of brain atrophy.  Note also the normal calcification of the choroid plexus in the atria (c) which is found very commonly even in young patients.
Image Courtesy Ashley Davidoff MD 75932c01




)

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The CT scan of this 92 year old man reveals normal involutional change of the brain including perivntricular lucency(a)suggestive of microangiopathic change, mild dilatation of the ventricles (b) with deepening of the sulci and prominence of the gyri (abc) and ability to identify the temporal horns (d), all signs of brain atrophy.  Note also the normal calcification of the choroid plexus in the atria (c) which is found very commonly even in young patients.
Image Courtesy Ashley Davidoff MD 75932c01

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The CT scan of this 92 year old man reveals normal involutional change of the brain including perivntricular lucency(a)suggestive of microangiopathic change, mild dilatation of the ventricles (b) with deepening of the sulci and prominence of the gyri (abc) and ability to identify the temporal horns (d), all signs of brain atrophy.  Note also the normal calcification of the choroid plexus in the atria (c) which is found very commonly even in young patients.
Image Courtesy Ashley Davidoff MD 75932c01

)

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Choroid Plexus in the Temporal Horns



The reconstructed CTA scan in the coronal plane reveals the choroid plexus (purple) as fine knotty strands extending from the atrium to the temporal horns bilaterally.
Image Courtesy Ashley Davidoff MD Copyright 2010 76532c.8s




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Choroid Plexus in the Temporal Horns



The reconstructed CTA scan in the coronal plane reveals the choroid plexus (purple) as fine knotty strands extending from the atrium to the temporal horns bilaterally.
Image Courtesy Ashley Davidoff MD Copyright 2010 76532c.8s




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The reconstructed CTA scan in the coronal plane reveals the choroid plexus (purple) as fine knotty strands extending from the atrium to the temporal horns bilaterally.
Image Courtesy Ashley Davidoff MD Copyright 2010 76532c.8s

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The reconstructed CTA scan in the coronal plane reveals the choroid plexus (purple) as fine knotty strands extending from the atrium to the temporal horns bilaterally.
Image Courtesy Ashley Davidoff MD Copyright 2010 76532c.8s

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Temporal Horns Extending from the Atria



The atria and temporal horns are demonstrated in this coronal MRI using a STIR sequence. The tmporal horns are easily recognized as an inveted ?V shaped structure starting roughly in the midline and courses laterally and inferiorly. They start just anterior to the occipital lobes and end in the temporal lobes and these lobes can be recognized as neighbours of this part of the ventricular system.
Courtesy Ashley Davidoff MD copyright 2010 all rights reserved 89744c01.8s




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Temporal Horns Extending from the Atria



The atria and temporal horns are demonstrated in this coronal MRI using a STIR sequence. The tmporal horns are easily recognized as an inveted ?V shaped structure starting roughly in the midline and courses laterally and inferiorly. They start just anterior to the occipital lobes and end in the temporal lobes and these lobes can be recognized as neighbours of this part of the ventricular system.
Courtesy Ashley Davidoff MD copyright 2010 all rights reserved 89744c01.8s




)

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The atria and temporal horns are demonstrated in this coronal MRI using a STIR sequence. The tmporal horns are easily recognized as an inveted ?V shaped structure starting roughly in the midline and courses laterally and inferiorly. They start just anterior to the occipital lobes and end in the temporal lobes and these lobes can be recognized as neighbours of this part of the ventricular system.
Courtesy Ashley Davidoff MD copyright 2010 all rights reserved 89744c01.8s

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The atria and temporal horns are demonstrated in this coronal MRI using a STIR sequence. The tmporal horns are easily recognized as an inveted ?V shaped structure starting roughly in the midline and courses laterally and inferiorly. They start just anterior to the occipital lobes and end in the temporal lobes and these lobes can be recognized as neighbours of this part of the ventricular system.
Courtesy Ashley Davidoff MD copyright 2010 all rights reserved 89744c01.8s

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Temporal Horns ? Part of the ForebrainDistribution of the Ventricles



The distribution of the ventricular system is demonstrated in this diagram with the forebrain structures (green) including the lateral ventriclesfrontal horns, atria, temporal horns, and third ventricle. The midbrain positioned aqueduct of Sylvius is seen in orange, while the hindbrained positioned 4th ventricle is overlaid in orange
Courtesy Ashley DAvidoff MD copyright 2010 all rights reserved 93914b04d07.8s




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Temporal Horns ? Part of the ForebrainDistribution of the Ventricles



The distribution of the ventricular system is demonstrated in this diagram with the forebrain structures (green) including the lateral ventriclesfrontal horns, atria, temporal horns, and third ventricle. The midbrain positioned aqueduct of Sylvius is seen in orange, while the hindbrained positioned 4th ventricle is overlaid in orange
Courtesy Ashley DAvidoff MD copyright 2010 all rights reserved 93914b04d07.8s




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The distribution of the ventricular system is demonstrated in this diagram with the forebrain structures (green) including the lateral ventriclesfrontal horns, atria, temporal horns, and third ventricle. The midbrain positioned aqueduct of Sylvius is seen in orange, while the hindbrained positioned 4th ventricle is overlaid in orange
Courtesy Ashley DAvidoff MD copyright 2010 all rights reserved 93914b04d07.8s

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The distribution of the ventricular system is demonstrated in this diagram with the forebrain structures (green) including the lateral ventriclesfrontal horns, atria, temporal horns, and third ventricle. The midbrain positioned aqueduct of Sylvius is seen in orange, while the hindbrained positioned 4th ventricle is overlaid in orange
Courtesy Ashley DAvidoff MD copyright 2010 all rights reserved 93914b04d07.8s

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The Recesses



The diagram in the sagittal projection reveals the horizontal portion called the lateral ventricle. It is a paired structure that houses the frontal horn, body, and the vertical portion which is composed of the 3rd ventricle, cerebral aqueduct and the 4th ventricle. The lateral ventricle consists of the frontal horn, body, occipital horn, atrium and the temporal horn The foramen of Monro connects the lateral ventricles with the third ventricle. The paired foramina of Luschka are sitiuated anteriorly in the 4th ventricle and they allow CSF to circulate in the subarachnoid spaces. The foramen of Magendie is a single structure and is situated posteriorly and it also enables CSF to enter the subarachnoid space. code brain ventricles lateral ventricles frontal horn body occipital horn atrium temporal horn 3rd ventricle 4th ventricle foramen of Monro formamen of Magendie Foramen of Luschka anatomy normal neuroanatomy diagram conceptual diagram structure principles Davidoff Art Courtesy Ashley Davidoff MD copyright 2010 all rights
Courtesy Ashley Davidoff MD copyright 2010 all rights reserved  94459b10b02.82s




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The Recesses



The diagram in the sagittal projection reveals the horizontal portion called the lateral ventricle. It is a paired structure that houses the frontal horn, body, and the vertical portion which is composed of the 3rd ventricle, cerebral aqueduct and the 4th ventricle. The lateral ventricle consists of the frontal horn, body, occipital horn, atrium and the temporal horn The foramen of Monro connects the lateral ventricles with the third ventricle. The paired foramina of Luschka are sitiuated anteriorly in the 4th ventricle and they allow CSF to circulate in the subarachnoid spaces. The foramen of Magendie is a single structure and is situated posteriorly and it also enables CSF to enter the subarachnoid space. code brain ventricles lateral ventricles frontal horn body occipital horn atrium temporal horn 3rd ventricle 4th ventricle foramen of Monro formamen of Magendie Foramen of Luschka anatomy normal neuroanatomy diagram conceptual diagram structure principles Davidoff Art Courtesy Ashley Davidoff MD copyright 2010 all rights
Courtesy Ashley Davidoff MD copyright 2010 all rights reserved  94459b10b02.82s




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The diagram in the sagittal projection reveals the horizontal portion called the lateral ventricle. It is a paired structure that houses the frontal horn, body, and the vertical portion which is composed of the 3rd ventricle, cerebral aqueduct and the 4th ventricle. The lateral ventricle consists of the frontal horn, body, occipital horn, atrium and the temporal horn The foramen of Monro connects the lateral ventricles with the third ventricle. The paired foramina of Luschka are sitiuated anteriorly in the 4th ventricle and they allow CSF to circulate in the subarachnoid spaces. The foramen of Magendie is a single structure and is situated posteriorly and it also enables CSF to enter the subarachnoid space. code brain ventricles lateral ventricles frontal horn body occipital horn atrium temporal horn 3rd ventricle 4th ventricle foramen of Monro formamen of Magendie Foramen of Luschka anatomy normal neuroanatomy diagram conceptual diagram structure principles Davidoff Art Courtesy Ashley Davidoff MD copyright 2010 all rights
Courtesy Ashley Davidoff MD copyright 2010 all rights reserved  94459b10b02.82s

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The diagram in the sagittal projection reveals the horizontal portion called the lateral ventricle. It is a paired structure that houses the frontal horn, body, and the vertical portion which is composed of the 3rd ventricle, cerebral aqueduct and the 4th ventricle. The lateral ventricle consists of the frontal horn, body, occipital horn, atrium and the temporal horn The foramen of Monro connects the lateral ventricles with the third ventricle. The paired foramina of Luschka are sitiuated anteriorly in the 4th ventricle and they allow CSF to circulate in the subarachnoid spaces. The foramen of Magendie is a single structure and is situated posteriorly and it also enables CSF to enter the subarachnoid space. code brain ventricles lateral ventricles frontal horn body occipital horn atrium temporal horn 3rd ventricle 4th ventricle foramen of Monro formamen of Magendie Foramen of Luschka anatomy normal neuroanatomy diagram conceptual diagram structure principles Davidoff Art Courtesy Ashley Davidoff MD copyright 2010 all rights
Courtesy Ashley Davidoff MD copyright 2010 all rights reserved  94459b10b02.82s

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The Recesses
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The Recesses
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Sagittal View of the Ventricles



The diagram in the sagittal projection reveals the horizontal portion called the lateral ventricle. It is a paired structure that houses the frontal horn, body, and the vertical portion which is composed of the 3rd ventricle, cerebral aqueduct and the 4th ventricle. The lateral ventricle consists of the frontal horn, body, occipital horn, atrium and the temporal horn The foramen of Monro connects the lateral ventricles with the third ventricle. The paired foramina of Luschka are sitiuated anteriorly in the 4th ventricle and they allow CSF to circulate in the subarachnoid spaces. The foramen of Magendie is a single structure and is situated posteriorly and it also enables CSF to enter the subarachnoid space.
Courtesy Ashley Davidoff MD copyright 2010 all rights reserved 94459b10b02.82s




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Sagittal View of the Ventricles



The diagram in the sagittal projection reveals the horizontal portion called the lateral ventricle. It is a paired structure that houses the frontal horn, body, and the vertical portion which is composed of the 3rd ventricle, cerebral aqueduct and the 4th ventricle. The lateral ventricle consists of the frontal horn, body, occipital horn, atrium and the temporal horn The foramen of Monro connects the lateral ventricles with the third ventricle. The paired foramina of Luschka are sitiuated anteriorly in the 4th ventricle and they allow CSF to circulate in the subarachnoid spaces. The foramen of Magendie is a single structure and is situated posteriorly and it also enables CSF to enter the subarachnoid space.
Courtesy Ashley Davidoff MD copyright 2010 all rights reserved 94459b10b02.82s




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The diagram in the sagittal projection reveals the horizontal portion called the lateral ventricle. It is a paired structure that houses the frontal horn, body, and the vertical portion which is composed of the 3rd ventricle, cerebral aqueduct and the 4th ventricle. The lateral ventricle consists of the frontal horn, body, occipital horn, atrium and the temporal horn The foramen of Monro connects the lateral ventricles with the third ventricle. The paired foramina of Luschka are sitiuated anteriorly in the 4th ventricle and they allow CSF to circulate in the subarachnoid spaces. The foramen of Magendie is a single structure and is situated posteriorly and it also enables CSF to enter the subarachnoid space.
Courtesy Ashley Davidoff MD copyright 2010 all rights reserved 94459b10b02.82s

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The diagram in the sagittal projection reveals the horizontal portion called the lateral ventricle. It is a paired structure that houses the frontal horn, body, and the vertical portion which is composed of the 3rd ventricle, cerebral aqueduct and the 4th ventricle. The lateral ventricle consists of the frontal horn, body, occipital horn, atrium and the temporal horn The foramen of Monro connects the lateral ventricles with the third ventricle. The paired foramina of Luschka are sitiuated anteriorly in the 4th ventricle and they allow CSF to circulate in the subarachnoid spaces. The foramen of Magendie is a single structure and is situated posteriorly and it also enables CSF to enter the subarachnoid space.
Courtesy Ashley Davidoff MD copyright 2010 all rights reserved 94459b10b02.82s

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Sagittal View of the Ventricles
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Sagittal View of the Ventricles
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The vectors of the ventricular System Overlaid on the Brain



The ventricular system is overlaid on a drawing of the brain. Each limb of the horizontal component is situated in a cerebral hemisphere.  The angled parts that extend inferiorly represent the temporal horns. The vertical limb includes the third and fourth ventricles
Courtesy Ashley Davidoff MD copyright 2010 all rights reserved  94458e07.81s




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The vectors of the ventricular System Overlaid on the Brain



The ventricular system is overlaid on a drawing of the brain. Each limb of the horizontal component is situated in a cerebral hemisphere.  The angled parts that extend inferiorly represent the temporal horns. The vertical limb includes the third and fourth ventricles
Courtesy Ashley Davidoff MD copyright 2010 all rights reserved  94458e07.81s




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The ventricular system is overlaid on a drawing of the brain. Each limb of the horizontal component is situated in a cerebral hemisphere.  The angled parts that extend inferiorly represent the temporal horns. The vertical limb includes the third and fourth ventricles
Courtesy Ashley Davidoff MD copyright 2010 all rights reserved  94458e07.81s

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The ventricular system is overlaid on a drawing of the brain. Each limb of the horizontal component is situated in a cerebral hemisphere.  The angled parts that extend inferiorly represent the temporal horns. The vertical limb includes the third and fourth ventricles
Courtesy Ashley Davidoff MD copyright 2010 all rights reserved  94458e07.81s

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The vectors of the ventricular System Overlaid on the Brain
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The vectors of the ventricular System Overlaid on the Brain
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