Intracerebral metastases MRI
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Intracerebral metastases Microchapters |
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Differentiating Intracerebral Metastases from other Diseases |
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Diagnosis |
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Treatment |
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Case Studies |
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Intracerebral metastases MRI On the Web |
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American Roentgen Ray Society Images of Intracerebral metastases MRI |
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Risk calculators and risk factors for Intracerebral metastases MRI |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Sujit Routray, M.D. [2]
Overview
MRI
- On MRI, brain metastases are typically found in the watershed areas of the brain (areas where blood vessels narrow and act as a trap for clumps of tumor cells).[1]
| MRI component | Findings |
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T1 |
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T1 with contrast |
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T2 |
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FLAIR |
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Diffusion weighted imaging (DWI) |
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Gallery
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![Brain metastasis in the right cerebral hemisphere from lung cancer shown on T1-weighted magnetic resonance imaging with intravenous contrast.[2]](/images/4/4f/Brain_metastases_MRT-T1WI.jpg)
Brain metastasis in the right cerebral hemisphere from lung cancer shown on T1-weighted magnetic resonance imaging with intravenous contrast.[2]
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![Coronal T1 C+ head within the parieto-occipital region on the left demonstrates a very rounded brightly peripherally enhancing mass located near the grey-white junction, surrounded by a moderate amount of vasogenic edema. The central region of lower signal intensity does not enhance nor does it restrict. Features are consistent with the patient's known metastatic disease with bull's eye sign.[3]](/images/9/95/MRI_of_brain_metastasis_1.jpg)
Coronal T1 C+ head within the parieto-occipital region on the left demonstrates a very rounded brightly peripherally enhancing mass located near the grey-white junction, surrounded by a moderate amount of vasogenic edema. The central region of lower signal intensity does not enhance nor does it restrict. Features are consistent with the patient's known metastatic disease with bull's eye sign.[3]
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![Axial T2 MRI scan of 60 year old female with known history of malignant melanoma, complaining of acute right hemiplegia, aphasia, and confusion, demonstrates a large cerebral haematoma with a fluid-fluid level. There is a smaller low signal area anteriorly which corresponded to the known metastasis. This smaller area enhanced after gadolinium, as did the overlying dura.[4]](/images/d/d6/MRI_of_brain_metastasis_2.jpg)
Axial T2 MRI scan of 60 year old female with known history of malignant melanoma, complaining of acute right hemiplegia, aphasia, and confusion, demonstrates a large cerebral haematoma with a fluid-fluid level. There is a smaller low signal area anteriorly which corresponded to the known metastasis. This smaller area enhanced after gadolinium, as did the overlying dura.[4]
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![Axial T1 MRI scan of an elderly patient with history of small cell lung cancer, presenting with increasing headaches, demonstrates multiple cystic cerebral metastases.[5]](/images/6/6e/MRI_of_brain_metastasis_3.jpg)
Axial T1 MRI scan of an elderly patient with history of small cell lung cancer, presenting with increasing headaches, demonstrates multiple cystic cerebral metastases.[5]
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![MRI head with contrast in a known case of renal cell carcinoma demonstrates multiple, large, well-defined, round, solid-cystic, peripheral irregular enhancement mass lesions involving left cerebral hemisphere and corpus callosum, crossing the midline anteriorly. Areas of necrosis and hemorrhage are seen within the lesion. Associated mass effect and moderate peritumoral edema is observed.[6]](/images/b/b7/MRI_of_brain_metastasis_4.jpg)
MRI head with contrast in a known case of renal cell carcinoma demonstrates multiple, large, well-defined, round, solid-cystic, peripheral irregular enhancement mass lesions involving left cerebral hemisphere and corpus callosum, crossing the midline anteriorly. Areas of necrosis and hemorrhage are seen within the lesion. Associated mass effect and moderate peritumoral edema is observed.[6]
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![A 40 year old female previously operated for metastatic brain lesion from Ca thyroid presents with altered sensorium. Patient earlier had thyroidectomy 1 year ago. Axial T2 MRI scan reveals left parietal lobe lesion with adjacent perilesional edema with an skull vault lesion at the previous craniotomy site. Skull vault lesion shows intense homogeneous enhancement.[7]](/images/8/8a/MRI_of_brain_metastasis_5.jpg)
A 40 year old female previously operated for metastatic brain lesion from Ca thyroid presents with altered sensorium. Patient earlier had thyroidectomy 1 year ago. Axial T2 MRI scan reveals left parietal lobe lesion with adjacent perilesional edema with an skull vault lesion at the previous craniotomy site. Skull vault lesion shows intense homogeneous enhancement.[7]
![Brain metastasis in the right cerebral hemisphere from lung cancer shown on T1-weighted magnetic resonance imaging with intravenous contrast.[2]](/index.php/File:Brain_metastases_MRT-T1WI.jpg)
![Coronal T1 C+ head within the parieto-occipital region on the left demonstrates a very rounded brightly peripherally enhancing mass located near the grey-white junction, surrounded by a moderate amount of vasogenic edema. The central region of lower signal intensity does not enhance nor does it restrict. Features are consistent with the patient's known metastatic disease with bull's eye sign.[3]](/index.php/File:MRI_of_brain_metastasis_1.jpg)
![Axial T2 MRI scan of 60 year old female with known history of malignant melanoma, complaining of acute right hemiplegia, aphasia, and confusion, demonstrates a large cerebral haematoma with a fluid-fluid level. There is a smaller low signal area anteriorly which corresponded to the known metastasis. This smaller area enhanced after gadolinium, as did the overlying dura.[4]](/index.php/File:MRI_of_brain_metastasis_2.jpg)
![Axial T1 MRI scan of an elderly patient with history of small cell lung cancer, presenting with increasing headaches, demonstrates multiple cystic cerebral metastases.[5]](/index.php/File:MRI_of_brain_metastasis_3.jpg)
![MRI head with contrast in a known case of renal cell carcinoma demonstrates multiple, large, well-defined, round, solid-cystic, peripheral irregular enhancement mass lesions involving left cerebral hemisphere and corpus callosum, crossing the midline anteriorly. Areas of necrosis and hemorrhage are seen within the lesion. Associated mass effect and moderate peritumoral edema is observed.[6]](/index.php/File:MRI_of_brain_metastasis_4.jpg)
![A 40 year old female previously operated for metastatic brain lesion from Ca thyroid presents with altered sensorium. Patient earlier had thyroidectomy 1 year ago. Axial T2 MRI scan reveals left parietal lobe lesion with adjacent perilesional edema with an skull vault lesion at the previous craniotomy site. Skull vault lesion shows intense homogeneous enhancement.[7]](/index.php/File:MRI_of_brain_metastasis_5.jpg)
References
- ↑ Khuntia, Deepak (2015). "Contemporary Review of the Management of Brain Metastasis with Radiation". Advances in Neuroscience. 2015: 1–13. doi:10.1155/2015/372856. ISSN 2356-6787.
- ↑ MRI image of brain metastasis. Wikipedia 2015. https://en.wikipedia.org/wiki/Brain_metastasis. Accessed on November 9, 2015
- ↑ Image courtesy of Dr. Frank Gaillard. Radiopaedia (original file here). Creative Commons BY-SA-NC
- ↑ Image courtesy of Dr. Laughlin Dawes. Radiopaedia (original file here). Creative Commons BY-SA-NC
- ↑ Image courtesy of Dr. Frank Gaillard. Radiopaedia (original file here). Creative Commons BY-SA-NC
- ↑ Image courtesy of Dr. Frank Gaillard. Radiopaedia (original file here). Creative Commons BY-SA-NC
- ↑ Image courtesy of Dr. Paresh K Desai. Radiopaedia (original file here). Creative Commons BY-SA-NC