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Metastatic Tumors

Nolan MRN - MedPix (2008)

View Article: MedPix Image - MedPix Topic

Affiliation: Uniformed Services University

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Development of metastatic deposits within the parenchyma of the brain is the result of hematogenous spread... On occasion, the nervous system may be the sole site of distant metastasis, but cerebral involvement is generally associated with spread from the primary source into many organs... Often superficially placed nodules in the cortex become adherent to the overlying dura without generalized dissemination into the subarachnoid space... Localized extension to the dura also occurs in metastatic lesions of the cerebellar cortex... Metastases occur in the deep gray nuclei of the cerebrum, in the brain stem and cerebellum, but are less common than in the cerebral hemispheres... In these locations they may develop either as part of extensive dissemination in the brain or as a solitary deposit... Mention should be made of the relation of metastatic tumors to the development of increased intracranial pressure... It is not uncommon, however, for the pathologist to find multiple secondary foci in patients who have presented no clinical manifestations of intracranial hypertension and whose brain at necropsy shows none of the anatomical alterations related to cerebral edema.

No MeSH data available.


Section through Cerebellum and Brain Stem at Level of Medulla: Myelin Stain: There is a well-circumscribed lobulated nodule in one cerebellar hemisphere. It extends through the folia into the medullary substance and obliterates the flocculus. Primary in breast. Note the absence of surrounding edema.
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MPX2781_synpic42763: Section through Cerebellum and Brain Stem at Level of Medulla: Myelin Stain: There is a well-circumscribed lobulated nodule in one cerebellar hemisphere. It extends through the folia into the medullary substance and obliterates the flocculus. Primary in breast. Note the absence of surrounding edema.


Metastatic Tumors

Nolan MRN - MedPix (2008)

Section through Cerebellum and Brain Stem at Level of Medulla: Myelin Stain: There is a well-circumscribed lobulated nodule in one cerebellar hemisphere. It extends through the folia into the medullary substance and obliterates the flocculus. Primary in breast. Note the absence of surrounding edema.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
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getmorefigures.php?uid=MPX2781&req=5

MPX2781_synpic42763: Section through Cerebellum and Brain Stem at Level of Medulla: Myelin Stain: There is a well-circumscribed lobulated nodule in one cerebellar hemisphere. It extends through the folia into the medullary substance and obliterates the flocculus. Primary in breast. Note the absence of surrounding edema.

View Article: MedPix Image - MedPix Topic

Affiliation: Uniformed Services University

AUTOMATICALLY GENERATED EXCERPT
Please rate it.

Development of metastatic deposits within the parenchyma of the brain is the result of hematogenous spread... On occasion, the nervous system may be the sole site of distant metastasis, but cerebral involvement is generally associated with spread from the primary source into many organs... Often superficially placed nodules in the cortex become adherent to the overlying dura without generalized dissemination into the subarachnoid space... Localized extension to the dura also occurs in metastatic lesions of the cerebellar cortex... Metastases occur in the deep gray nuclei of the cerebrum, in the brain stem and cerebellum, but are less common than in the cerebral hemispheres... In these locations they may develop either as part of extensive dissemination in the brain or as a solitary deposit... Mention should be made of the relation of metastatic tumors to the development of increased intracranial pressure... It is not uncommon, however, for the pathologist to find multiple secondary foci in patients who have presented no clinical manifestations of intracranial hypertension and whose brain at necropsy shows none of the anatomical alterations related to cerebral edema.

No MeSH data available.