"T1: iso- to hypointense compared to the optic nerve or grey matter"
"T2: iso- to hyperintense compared to the optic nerve or grey matter"
"T1 C+ (Gd): homogeneous enhancement"
"DWI/ADC: may have diffusion restriction 13"
"On somatostatin receptor PET-CT (e.g. 68Ga-DOTATOC, 68Ga-DOTATATE, or 68Ga-DOTANOC), optic nerve sheath meningiomas often have high uptake, due to high somatostatin receptor 2A (SSTR2A) expression 14."
"On somatostatin receptor PET-CT (e.g. 68Ga-DOTATOC, 68Ga-DOTATATE, or 68Ga-DOTANOC), optic nerve sheath meningiomas often have high uptake, due to high somatostatin receptor 2A (SSTR2A) expression 14."
"On somatostatin receptor PET-CT (e.g. 68Ga-DOTATOC, 68Ga-DOTATATE, or 68Ga-DOTANOC), optic nerve sheath meningiomas often have high uptake, due to high somatostatin receptor 2A (SSTR2A) expression 14."
"On somatostatin receptor PET-CT (e.g. 68Ga-DOTATOC, 68Ga-DOTATATE, or 68Ga-DOTANOC), optic nerve sheath meningiomas often have high uptake, due to high somatostatin receptor 2A (SSTR2A) expression 14."
Expected headings
"Complications"
"Optic nerve sheath meningiomas account for approximately 1-2% of all meningiomas 11, and a third of all optic nerve neoplasms; optic nerve gliomas are the most common entity. Unlike optic nerve gliomas which occur primarily in children, optic nerve sheath meningiomas are usually seen in adults (mean age at presentation 40 years) 1,5, however up to 25% are present in children, in which case they tend to be more aggressive 5. Similar to meningiomas elsewhere there is a female predilection 1,11."
"stereotactic fractionated radiotherapy (SFRT) or intensity-modulated radiotherapy (IMRT) are preferred to conventional radiotherapy 7,11; proton beam radiotherapy and stereotactic radiosurgery may other options 8,11"
"rarely indicated, often reserved for cases with severely impaired vision, with or without severe proptosis, or if there is imaging evidence of posterior growth threatening the contralateral optic nerve 11"