File:Colloid cyst (Radiopaedia 79336-92410 Axial non-contrast 9).jpg

From NC Commons
Jump to navigation Jump to search

Original file ‎(630 × 705 pixels, file size: 52 KB, MIME type: image/jpeg)

Summary:

Description
  • Radiopaedia case ID: 79336
  • Image ID: 52992496
  • Image stack position: 9/30
  • Plane projection: Axial
  • Aux modality: non-contrast
  • Study description: CT brain three weeks after surgery
  • Study findings: FINDINGS: Status post-frontal burr hole craniotomy. The previously noted colloid cyst at the level of the foramen of Monro has largely been surgically removed, leaving behind a small residual hypodensity. Mild bleed is seen in the lateral ventricles (likely post-surgical). Some hypodensities are seen in the right frontal lobe and left basal ganglia region which are likely post-surgical changes. A VP shunt is seen in place with its tip lying in the substance of the right frontal lobe.
  • Modality: CT
  • System: Central Nervous System
  • Findings: FINDINGS: A well-defined rounded nodular lesion measuring about 2.5 x 2.3 cm is sen in the roof of the third ventricle. The lesion is causing obstruction of the foramen of Monro, leading to mild dilatation of both lateral ventricles. The lesion is minimally hyperintense on T1W and mildly hypointense on T2 weighted images and shows mild peripheral ring-like enhancement. A few small mildly enhancing nodules which are hyperintense on T1W and hypointense on T2 are seen along its superior margin. The internal cerebral veins are seen stretched over the lesion. No obvious aneurysm is noted in the circle of Willis. A small well-defined mulberry like nodule measuring ~2 cm is seen in the soft tissues of the scalp in the vertex, which is likely a sebaceous cyst. IMPRESSION: Well-defined lesion in the roof of the third ventricle with mild proximal hydrocephalus, which is likely a colloid cyst, however, small enhancing nodular lesions seen in the roof of the lesion are atypical imaging features of a colloid cyst.
Date Published: 25th Jun 2020
Source https://radiopaedia.org/cases/colloid-cyst-40
Author Ammar Ashraf
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
current10:48, 30 August 2021Thumbnail for version as of 10:48, 30 August 2021630 × 705 (52 KB)Fæ (talk | contribs)Radiopaedia project rID:79336 (batch #8624-9 A9)

You cannot overwrite this file.

There are no pages that use this file.

Retrieved from "https://nccommons.org/w/index.php?title=File:Colloid_cyst_(Radiopaedia_79336-92410_Axial_non-contrast_9).jpg&oldid=1191109"