File:Brain metastasis (lung cancer) (Radiopaedia 48289-53179 Axial DWI 55).png

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Brain_metastasis_(lung_cancer)_(Radiopaedia_48289-53179_Axial_DWI_55).png ‎(512 × 512 pixels, file size: 33 KB, MIME type: image/png)

Summary:

Description
  • Radiopaedia case ID: 48289
  • Image ID: 25349618
  • Image stack position: 55/56
  • Plane projection: Axial
  • Aux modality: DWI
  • Study description: MRI Brain
  • Study findings: Large left frontal lobe multilobulated cystic lesion showing an internal high T2 signal that partially suppresses on FLAIR and has thin enhancing margins. There is a small posterior septated lobulation that has restricted diffusion but that otherwise has the same signal pattern of the core lesion; other small foci of diffusion restriction are noted within the enhancing rim at the medial margins of the lesion. The tumor causes a noticeable mass effect with surrounding vasogenic edema, subfalcine herniation and rightward midline shift in about 2 cm. No uncal or tonsillar herniation. Areas of elevated cerebral blood volume (CBV) at parts of the margin. The cortex appears to be spared on the T2 axial images, with no definitive evidence of cortical thickening. No convincing choline elevation along the lesion margins on spectroscopy. Although these findings suggest metastasis, presence of increased T2/FLAIR signal involving the genu of the corpus callosum would be more in keeping with glioma. Right frontal lobe area of encephalomalacia is probably sequela of a previous infarct.
  • Modality: MRI
  • System: Central Nervous System
  • Findings: Large multilobulated cystic mass within the left frontal lobe showing thin capsular enhancement ("ring enhancement") and causing prominent local mass effect with vasogenic edema and subfalcine herniation.
Date Published: 2nd Oct 2016
Source https://radiopaedia.org/cases/brain-metastasis-lung-cancer-1
Author Bruno Di Muzio
Permission
(Permission-reusing-text)		 http://creativecommons.org/licenses/by-nc-sa/3.0/

Licensing:

Attribution-NonCommercial-ShareAlike 3.0 Unported (CC BY-NC-SA 3.0)

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