Planum sphenoidale meningioma

Case contributed by Dr Andrew Dixon

Presentation

Head trauma. ?Intracranial haemorrhage

Patient Data

Age: 75 years
Gender: Male
CT

Extra-axial hyperdense lesion of the right side of the planum sphenoidale with related hyperostosis consistent with a meningioma. On the axial images it can be difficult to appreciate that the lesion is extra-axial and in the setting of trauma this might be misinterpreted as being an intra-parenchymal haemorrhage as the inferior frontal lobe is a common location for traumatic haemorrhage. An additional calcified right frontal meningioma is seen more superiorly.     

Case Discussion

Small planum sphenoidale meningioma simulating a right inferior frontal lobe traumatic haemorrhage in an elderly male following head trauma. This case emphasises the importance of;

  • not assuming all hyperdense intracranial lesions are haemorrhage in the setting of trauma.
  • examining abnormalities in multiple planes to determine intra or extra-axial status.
  • looking for hyperostosis to help support a diagnosis of meningioma.  
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Case information

rID: 33642
Case created: 19th Jan 2015
Last edited: 15th Feb 2016
Inclusion in quiz mode: Included

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