Suprasellar meningioma

Case contributed by A.Prof Frank Gaillard

Presentation

Decreased vision.

Patient Data

Age: 40 years
Gender: Female
MRI

A mildly T2 hyperintense, T1 isointense and homogeneously enhancing mass with mild diffusion restriction arises from a broad dural base along planum sphenoidale and diaphragma sellae. The mass indents the posteroinferior frontal lobes, effaces the third ventricle and posteroinferiorly displaces the pituitary infundibulum. There is no evidence of extension into the pituitary fossa, cavernous sinuses or orbital apex.

The prechiasmatic optic nerves are flattened and bowed around the lateral periphery of the mass, and the optic chiasm is severely compressed at its posterior margin.

Supraclinoid ICAs are abutted medially but not encased by tumour, and the anterior cerebral artery A1 segments are draped over the posterosuperior margin.

No extradural enhancing lesion is identified. Brain parenchyma demonstrates normal signal with no diffusion restriction or pathological enhancement. No hydrocephalus.

Conclusion

Morphology and signal characteristics of the large mass arising from planum sphenoidale and diaphragma sellae are consistent with a meningioma.

Severe displacement and compression of the optic chiasm and prechiasmatic optic nerves, which are stretched around the lateral and posterior margins of the mass.

 

Case Discussion

The patient went on to have the mass resected. 

Histology

MICROSCOPIC DESCRIPTION: Paraffin sections show fragments of a moderately hypercellular meningioma with a dural attachment. Also included are fragments of refractile foreign material. The tumour has a well developed syncytial architecture. Tumour cells have uniform nuclear features. No mitotic figures or areas of necrosis are identified and there is no evidence of brain invasion.

DIAGNOSIS: Meningioma (WHO Grade I).

PlayAdd to Share

Case information

rID: 32684
Case created: 9th Dec 2014
Last edited: 15th Feb 2016
Inclusion in quiz mode: Included

Updating… Please wait.
Loadinganimation

Alert accept

Error Unable to process the form. Check for errors and try again.

Alert accept Thank you for updating your details.