File:Choroid plexus papilloma (Radiopaedia 33040-34052 Axial T2 19).png

From NC Commons
Jump to navigation Jump to search

Choroid_plexus_papilloma_(Radiopaedia_33040-34052_Axial_T2_19).png ‎(512 × 512 pixels, file size: 182 KB, MIME type: image/png)

Summary:

Description
  • Radiopaedia case ID: 33040
  • Image ID: 9987896
  • Image stack position: 19/25
  • Plane projection: Axial
  • Aux modality: T2
  • Study findings: A 17 x 16 x 17 mm mass is seen within the floor of the fourth ventricle. No extension into the foramen of Luschka. It is isointense to parenchyma on T1, T2 hyperintense, and mildly hyperintense on FLAIR, with vivid diffuse contrast enhancement. No diffusion restriction. No foci of hemorrhage seen on EPI, although there are areas of linear hyperdensity on CT that may represent calcification. No hydrocephalus seen. Perfusion study demonstrates increased cerebral blood flow within the mass. MR spectroscopy  (not shown) over the mass demonstrates slight reduction in NAA and reversal of the choline to creatinine ratio, although unfortunately a sloping baseline reduces specificity of findings. T2/FLAIR white matter and periventricular hyperintensity in keeping with chronic small vessel ischemic change. Fluid seen within the ethmoid and sphenoid sinuses. Conclusion: Tumor within the floor of the fourth ventricle. Given the CT and MRI appearances the differential includes ependymoma, more likely (given the vivid enhancement) a choroid plexus papilloma. Less likely possibilities include a metastasis, or even less likely intraventricular meningioma.
  • Modality: MRI
  • System: Oncology
  • Findings: A vividly enhancing mass in the 4th ventricle is present, with speckled calcification. It is a solitary lesion, and no hydrocephalus is present.
Date Published: 29th Dec 2014
Source https://radiopaedia.org/cases/choroid-plexus-papilloma-6
Author Frank Gaillard
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)

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current22:13, 19 August 2021Thumbnail for version as of 22:13, 19 August 2021512 × 512 (182 KB)Fæ (talk | contribs)Radiopaedia project rID:33040 (batch #7934-19 A19)

You cannot overwrite this file.

There are no pages that use this file.

Metadata

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.

If the file has been modified from its original state, some details may not fully reflect the modified file.

Retrieved from "https://nccommons.org/w/index.php?title=File:Choroid_plexus_papilloma_(Radiopaedia_33040-34052_Axial_T2_19).png&oldid=1032882"