File:Atypical meningioma (WHO Grade II) (Radiopaedia 54742-61000 H&E 1).jpg

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Atypical_meningioma_(WHO_Grade_II)_(Radiopaedia_54742-61000_H&E_1).jpg(720 × 540 pixels, file size: 134 KB, MIME type: image/jpeg)

Summary:

Description
  • Radiopaedia case ID: 54742
  • Image ID: 31793897
  • Aux modality: H&E
  • Study findings: The tumor sections show a hypercellular meningioma with a meningothelial architecture. Tumor cells are arranged in whorls and diffuse sheets. Tumor cells demonstrate uniform nuclear features with occasional small nucleoli. There is focal tumor cell nuclear overlap and small cell change present. Scattered psammoma bodies are present. There are up to 5 mitoses/10hpf. Specimen 5 shows extensive areas of tumor necrosis. Focal brain invasion is identified. Dural attachment is noted. There is no evidence of malignancy. Diagnosis: Atypical meningioma (WHO Grade II) with brain invasion.
  • Modality: Pathology
  • System: Central Nervous System
  • Findings: Large right temporal enhancing mass appears extra-axial. Encasement of right MCA vessels with multifocal infarcts in the right MCA territory in keeping with compression of the vessels. No evidence of brain invasion on imaging. The hypointense T2 signal in the medial component of the tumor is suggestive of hard component of the tumor at surgery.Severe mass effect with uncal herniation and compression of the right cerebral peduncle.
Date Published: 30th Jul 2017
Source https://radiopaedia.org/cases/atypical-meningioma-who-grade-ii-1
Author Ernest Lekgabe
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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current05:09, 3 June 2021Thumbnail for version as of 05:09, 3 June 2021720 × 540 (134 KB) (talk | contribs)Radiopaedia project rID:54742 (batch #3240-1 A1)

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