File:Aneurysmal bone cyst - sacrum (Radiopaedia 65190-74195 Axial non-contrast 40).jpg

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Aneurysmal_bone_cyst_-_sacrum_(Radiopaedia_65190-74195_Axial_non-contrast_40).jpg ‎(627 × 557 pixels, file size: 37 KB, MIME type: image/jpeg)

Summary:

Description
  • Radiopaedia case ID: 65190
  • Image ID: 44991335
  • Image stack position: 40/51
  • Plane projection: Axial
  • Aux modality: non-contrast
  • Study findings: The CT study shows an expansile lytic lesion involving the sacral spine, mainly the posterior elements with thinning of the overlying cortex. Multiple fluid-fluid levels can be appreciated. The lesion extends anteriorly results in significant narrowing of the spinal canal. The lesion extends anteriorly through the right S2/3 neural foramen. The presacral fat appears unremarkable. No associated soft tissue mass. The diagnostic possibilities might include aneurysmal bone cyst versus osteoblastoma.
  • Modality: CT
  • System: Paediatrics
  • Findings: There is lytic lesion in the sacrum causing asymmetry of the sacral foramina. An overlapping fecal filled bowel loops degrade the image quality. The differential diagnosis of a midline sacral lesion in pediatric age group would include sacrococcygeal teratoma, chordoma, Ewing sarcoma or aneurysmal bone cyst. Further assessment with cross sectional imaging is needed to narrow the list.
Date Published: 28th Dec 2018
Source https://radiopaedia.org/cases/aneurysmal-bone-cyst-sacrum-1
Author Yasser Asiri
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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