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Pulmonary metastases from intracranial meningioma.

Mutnuru PC, Ahmed SF, Uppin SG, Lachi PK - Lung India (2015 Nov-Dec)

View Article: PubMed Central - PubMed

Affiliation: Department of Radiology, Nizam's Institute of Medical Sciences, Hyderabad, Telangana, India E-mail: phani_chakravarty@yahoo.co.in.

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Most meningiomas are benign and slowly growing (WHO grade-1), however atypical (WHO grade-2) and anaplastic (WHO grade-3) meningiomas show more aggressive biological behaviour with high risk of recurrence and metastases... Total excision of the lesion was done and post operative HPE report was of a Grade-1 meningioma (fibroblastic)... The post operative HPE report [Figure 1c and d] showed spindle cells arranged in fascicles with marked pleomorphism and frequent mitosis suggestive of anaplastic meningioma (Grade-3) with Ki 67 labeling index 20%... A report by WHO indicated that 94.3% of meningiomas are benign with 5 year recurrence rate of 3% as compared to 38% and 78% for atypical and anaplastic meningiomas, respectively... Metastases from benign meningiomas are rare and usually associated with large intracranial tumors... However, rate of metastases from atypical and anaplastic meningiomas are up to 5% and 30%, respectively [Table 1]... Histological parameters that are used as indicators for aggressive behaviour and predictors of rapid recurrence and metastases are high mitotic index, hypercellularity, loss of architecture, tumor necrosis, nuclear pleomorphism and ability for brain invasion... The routes of spread for meningioma are hematogenous, lymphatic and through cerebrospinal fluid... The common sites for distant metastases are lungs (60%), pleura (9%), mediastinum (5%), liver, lymph nodes and bones... Some of the interesting facts regarding the metastatic nature of meningiomas are – (a) Meningiomas of more than WHO grade-1 have the greatest tendency to metastasize, (b) a high rate of cellular proliferation is not essential for extracranial metastases, (c) an individual meningioma of any type may metastasize including WHO grade-1 and the metastasis itself may also benign, (d) the time interval from diagnosis of the primary to the occurrence of the metastasis after complete control of the primary is variable and ranges from predating the primary tumor to 19 years after treatment of the primary... Regarding treatment, there is no standard treatment for the cure of metastatic meningioma and chemotherapy is the only option in the case of metastases... In conclusion, in a patient with multiple cannon ball pulmonary lesions with a history of meningioma, especially with local recurrence, one of the differential diagnoses to be considered is metastatic meningioma.

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(a) Post contrast MRI of brain in coronal section shows a well-defined, extra-axial, dural-based, enhancing mass lesion with necrosis and perilesional edema in right frontal cortex in the parafalcine region causing a minimal mass effect over right lateral ventricle and falx. (b) Plain CT scan of brain axial image shows recurrence of the lesion. (c) H and E-stained section shows spindle cells arranged in fascicles with marked pleomorphism and frequent mitosis suggestive of anaplastic meningioma (Grade 3). (d) Ki-67 immunostaining with the MIB-1 antibody showing a labeling index of 20%
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Figure 1: (a) Post contrast MRI of brain in coronal section shows a well-defined, extra-axial, dural-based, enhancing mass lesion with necrosis and perilesional edema in right frontal cortex in the parafalcine region causing a minimal mass effect over right lateral ventricle and falx. (b) Plain CT scan of brain axial image shows recurrence of the lesion. (c) H and E-stained section shows spindle cells arranged in fascicles with marked pleomorphism and frequent mitosis suggestive of anaplastic meningioma (Grade 3). (d) Ki-67 immunostaining with the MIB-1 antibody showing a labeling index of 20%

Mentions: A 30-year-old male patient presented in April 2010 with complaints of headache since 1 month and two episodes of seizures. He underwent contrast-enhanced MRI of brain [Figure 1a] which showed an extra-axial, dural-based, enhancing mass lesion with areas of necrosis and perilesional edema in right frontal lobe adjacent to falx with minimal compression over right lateral ventricle suggestive of a meningioma. Total excision of the lesion was done and post operative HPE report was of a Grade-1 meningioma (fibroblastic).


Pulmonary metastases from intracranial meningioma.

Mutnuru PC, Ahmed SF, Uppin SG, Lachi PK - Lung India (2015 Nov-Dec)

(a) Post contrast MRI of brain in coronal section shows a well-defined, extra-axial, dural-based, enhancing mass lesion with necrosis and perilesional edema in right frontal cortex in the parafalcine region causing a minimal mass effect over right lateral ventricle and falx. (b) Plain CT scan of brain axial image shows recurrence of the lesion. (c) H and E-stained section shows spindle cells arranged in fascicles with marked pleomorphism and frequent mitosis suggestive of anaplastic meningioma (Grade 3). (d) Ki-67 immunostaining with the MIB-1 antibody showing a labeling index of 20%
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4663884&req=5

Figure 1: (a) Post contrast MRI of brain in coronal section shows a well-defined, extra-axial, dural-based, enhancing mass lesion with necrosis and perilesional edema in right frontal cortex in the parafalcine region causing a minimal mass effect over right lateral ventricle and falx. (b) Plain CT scan of brain axial image shows recurrence of the lesion. (c) H and E-stained section shows spindle cells arranged in fascicles with marked pleomorphism and frequent mitosis suggestive of anaplastic meningioma (Grade 3). (d) Ki-67 immunostaining with the MIB-1 antibody showing a labeling index of 20%
Mentions: A 30-year-old male patient presented in April 2010 with complaints of headache since 1 month and two episodes of seizures. He underwent contrast-enhanced MRI of brain [Figure 1a] which showed an extra-axial, dural-based, enhancing mass lesion with areas of necrosis and perilesional edema in right frontal lobe adjacent to falx with minimal compression over right lateral ventricle suggestive of a meningioma. Total excision of the lesion was done and post operative HPE report was of a Grade-1 meningioma (fibroblastic).

View Article: PubMed Central - PubMed

Affiliation: Department of Radiology, Nizam's Institute of Medical Sciences, Hyderabad, Telangana, India E-mail: phani_chakravarty@yahoo.co.in.

AUTOMATICALLY GENERATED EXCERPT
Please rate it.

Most meningiomas are benign and slowly growing (WHO grade-1), however atypical (WHO grade-2) and anaplastic (WHO grade-3) meningiomas show more aggressive biological behaviour with high risk of recurrence and metastases... Total excision of the lesion was done and post operative HPE report was of a Grade-1 meningioma (fibroblastic)... The post operative HPE report [Figure 1c and d] showed spindle cells arranged in fascicles with marked pleomorphism and frequent mitosis suggestive of anaplastic meningioma (Grade-3) with Ki 67 labeling index 20%... A report by WHO indicated that 94.3% of meningiomas are benign with 5 year recurrence rate of 3% as compared to 38% and 78% for atypical and anaplastic meningiomas, respectively... Metastases from benign meningiomas are rare and usually associated with large intracranial tumors... However, rate of metastases from atypical and anaplastic meningiomas are up to 5% and 30%, respectively [Table 1]... Histological parameters that are used as indicators for aggressive behaviour and predictors of rapid recurrence and metastases are high mitotic index, hypercellularity, loss of architecture, tumor necrosis, nuclear pleomorphism and ability for brain invasion... The routes of spread for meningioma are hematogenous, lymphatic and through cerebrospinal fluid... The common sites for distant metastases are lungs (60%), pleura (9%), mediastinum (5%), liver, lymph nodes and bones... Some of the interesting facts regarding the metastatic nature of meningiomas are – (a) Meningiomas of more than WHO grade-1 have the greatest tendency to metastasize, (b) a high rate of cellular proliferation is not essential for extracranial metastases, (c) an individual meningioma of any type may metastasize including WHO grade-1 and the metastasis itself may also benign, (d) the time interval from diagnosis of the primary to the occurrence of the metastasis after complete control of the primary is variable and ranges from predating the primary tumor to 19 years after treatment of the primary... Regarding treatment, there is no standard treatment for the cure of metastatic meningioma and chemotherapy is the only option in the case of metastases... In conclusion, in a patient with multiple cannon ball pulmonary lesions with a history of meningioma, especially with local recurrence, one of the differential diagnoses to be considered is metastatic meningioma.

No MeSH data available.


Related in: MedlinePlus