optic nerve enlargement
Optic nerve Hemangioblastoma with bilateral frontal lobe Oedema: a case report. Comparison of preoperative and postoperative MRI. The T1- and T2-weighted images show optic neuropathy before the operation. The T1 image shows isointensity (a), and the T2 and FLAIR images show hyperintensity (b, c). There was a significantly enhanced signal in the tumour after the enhancement scan (d). The FLAIR image shows hyperintensity of the left optic chiasma, visual radiation, and bilateral frontal lobe (e, f, g)
Optic nerve
Hemangioblastoma with bilateral frontal lobe Oedema: a case report. Comparison of preoperative and postoperative MRI. The T1- and T2-weighted images show optic neuropathy before the operation. The T1 image shows isointensity (a), and the T2 and FLAIR images show hyperintensity (b, c). There was a significantly enhanced signal in the tumour after the enhancement scan (d). The FLAIR image shows hyperintensity of the left optic chiasma, visual radiation, and bilateral frontal lobe (e, f, g)
Optic nerve sheath meningioma: a case report. Axial MR image (T1 with fat saturation). An isointense to brain and optic nerve (arrow) lesion which produces exopthalmos. The lesion appears as marked widening along the path of the optic nerve but there is no intracranial extension.
Optic nerve
sheath meningioma: a case report. Axial MR image (T1 with fat saturation). An isointense to brain and optic nerve (arrow) lesion which produces exopthalmos. The lesion appears as marked widening along the path of the optic nerve but there is no intracranial extension.
Optic nerve sheath meningioma: a case report. Axial MR image (T2 with fat saturation). The lesion is slightly hyperintense to the optic nerve (arrow).
Optic nerve
sheath meningioma: a case report. Axial MR image (T2 with fat saturation). The lesion is slightly hyperintense to the optic nerve (arrow).
Optic nerve sheath meningioma: a case report. Axial MR image (T1 with fat saturation) after intravenous administration of paramagnetic media. There is homogeneous intense enhancement producing a "tram track" appearance around the hypointense optic nerve. Surrounding structures remain intact.
Optic nerve
sheath meningioma: a case report. Axial MR image (T1 with fat saturation) after intravenous administration of paramagnetic media. There is homogeneous intense enhancement producing a "tram track" appearance around the hypointense optic nerve. Surrounding structures remain intact.
ähnliche Suchen
siehe auchEnlargement of the optic nerves is uncommon and has a surprisingly broad differential.
Etiology
- nepolastic
- optic nerve glioma
- optic nerve meningioma
- leukemia
- orbital lymphoma
- metastases
- juvenile xanthogranuloma
- medulloepithelioma
- involvement by retinoblastoma
- cyst of optic nerve sheath
- non-malignant infiltrative disease
- congenital anomalies
- inflammatory
- vascular lesion
- perioptic hemorrhage
- central retinal vein occlusion
- aneurysm of ophthalmic artery
- hemangioma
- varix
- venous occlusion
- Others
Siehe auch:
Assoziationen und Differentialdiagnosen zu verdickter Nervus Opticus:
inflammatorischer Pseudotumor der Orbita
inflammatorischer
Pseudotumor der Orbita
