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Complex Malformation

Shogan PJS - MedPix (2008)

View Article: MedPix Image - MedPix Case

Affiliation: Uniformed Services University

ABSTRACT

Diagnosis: Complex Malformation

History: Full-term neonate with abnormal prenatal ultrasound.

Findings: This patient has agenesis of the corpus callosum. The posterior fossa is small, with a normally formed cerebellum, which is compressed inferiorly, and the 4th ventricle and cerebral aqueduct are patent. The globes maintain cross-midline symmetry, and hypotelorism is noted. The optic tracts are normally formed. The thalami are fused, and there is partial interhemispheric fusion of the insular parenchyma, and a suggestion of anterior frontal lobe fusion. There is a partially formed posterior falx cerebri, and anterior interhemispheric fissure. There is a probable large monoventricle with a dorsal interhemispheric cyst, abutting dysplastic cerebral tissue. There is an apparent hypoplastic left internal jugular vein. A cephalocele at the vertex is also noted.

Ddx: Alobar Holoprosencephaly Semilobar Holoprosencephaly Lobar Holoprosencephaly Septooptic Dysplasia Scizencephaly

No MeSH data available.


T1 weighted sagittal image demonstrates agenesis of the corpus callosum.  The cerebellum is normally formed, although displaced inferiorly, and the 4th ventricle is patent.  The brainstem is also normally formed.  Additionally, the cerebellar tentorium is partially formed, and there is a large fluid collection extending from the brain parenchyma superiorly and posteriorly towards the vertex.
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MPX1686_synpic41850: T1 weighted sagittal image demonstrates agenesis of the corpus callosum. The cerebellum is normally formed, although displaced inferiorly, and the 4th ventricle is patent. The brainstem is also normally formed. Additionally, the cerebellar tentorium is partially formed, and there is a large fluid collection extending from the brain parenchyma superiorly and posteriorly towards the vertex.


Complex Malformation

Shogan PJS - MedPix (2008)

T1 weighted sagittal image demonstrates agenesis of the corpus callosum.  The cerebellum is normally formed, although displaced inferiorly, and the 4th ventricle is patent.  The brainstem is also normally formed.  Additionally, the cerebellar tentorium is partially formed, and there is a large fluid collection extending from the brain parenchyma superiorly and posteriorly towards the vertex.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=MPX1686&req=5

MPX1686_synpic41850: T1 weighted sagittal image demonstrates agenesis of the corpus callosum. The cerebellum is normally formed, although displaced inferiorly, and the 4th ventricle is patent. The brainstem is also normally formed. Additionally, the cerebellar tentorium is partially formed, and there is a large fluid collection extending from the brain parenchyma superiorly and posteriorly towards the vertex.

View Article: MedPix Image - MedPix Case

Affiliation: Uniformed Services University

ABSTRACT

Diagnosis: Complex Malformation

History: Full-term neonate with abnormal prenatal ultrasound.

Findings: This patient has agenesis of the corpus callosum. The posterior fossa is small, with a normally formed cerebellum, which is compressed inferiorly, and the 4th ventricle and cerebral aqueduct are patent. The globes maintain cross-midline symmetry, and hypotelorism is noted. The optic tracts are normally formed. The thalami are fused, and there is partial interhemispheric fusion of the insular parenchyma, and a suggestion of anterior frontal lobe fusion. There is a partially formed posterior falx cerebri, and anterior interhemispheric fissure. There is a probable large monoventricle with a dorsal interhemispheric cyst, abutting dysplastic cerebral tissue. There is an apparent hypoplastic left internal jugular vein. A cephalocele at the vertex is also noted.

Ddx: Alobar Holoprosencephaly Semilobar Holoprosencephaly Lobar Holoprosencephaly Septooptic Dysplasia Scizencephaly

No MeSH data available.