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Brain metastases

Procedure: MRI brain

Brain metastases are a medical condition in which cancer cells spread from the original site to the brain. In approx. 15 % of the people suffering from cancer or having a history of cancer, brain metastases represent the most common neurologic manifestation of cancer.

Prominently those with lung cancer, breast cancer, and melanoma (39%, 17%, and 11%, separately) generally represent patients with cerebrum metastases.

 MRI appearance

Metastatic lesions show isointense nature to mildly hypointense on T1-weighted images and are hyperintense on T2-weighted images or with fluid attenuation inversion recovery.

Encompassing edema is moderately hypointense on T1-weighted images and is hyperintense on T2-weighted images.

Hemorrhagic melanoma lesions or melanoma lesions are hyperintense on T1-weighted images. On T2-weighted images, mucinous adenocarcinoma can be hypointense, results in calcification; hemorrhagic metastases can be hypointense, and results in the chronic breakdown of blood products.

Following the organization of a contrast media, solid, nodular or irregular ring examples of the upgrade are seen. Non-upgrading sores are more averse to be metastases.

T2 Axial
T2 Axial
T1 coronal pre contrast
AXI DWI B0
AXI DWI B1000
AXI DWI B1000
AXI DWI ADC
AXI DWI ADC
T1 coronal post contrast
T1 Axial post-contrast
T1 Axial post-contrast

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