Ectopic meningioma
Ectopic
meningioma presenting as a neck mass: case report and review of literature. a–c Preoperative MRI: Axial T1 weighted (with contrast) and Coronal T1 weighted (with contrast); d–e Preoperative CT Scan (without and with contrast); f Preoperative CT Angiogram
Primary
ectopic atypical meningioma in the renal hilum: a case report. CT scanning and intravenous urography show the mass in the left renal hilum. The tumor displaced tissue near the renal hilum, and invaded the parenchyma and renal vessels. A: The plain scanning of the tumor. B: The contrast-enhanced phase of imaging. C: The collecting system of the affected kidney was compressed and distorted.
An ectopic meningioma (or primary ectopic meningioma) refers to rare situations where a meningioma arises outside the dura. Extracranial meningiomas are a special form of these outside the dural covering of the brain and spinal cord.
These can occur at various sites but usually occur in the head and neck region.
Reported sites include
- scalp skin
- ear and temporal bone
- sinonasal tract
- mandible
- orbit - primary orbital meningioma
Very rarely it can also arise outside the head and neck region such as
- lung - primary pulmonary meningioma
Siehe auch:
Assoziationen und Differentialdiagnosen zu ektopes Meningeom:
