Table 5.

Neuroimaging

	N (%)
CT Head (N=52)
Normal	16 (31)
Atrophy	8 (15)
Hydrocephalus	7 (13)
Parenchymal lesion	5 (10)
Ischemic white matter	3 (6)
Meninges	3 (6)
Cavernous Sinus	2 (4)
Infarct	2 (4)
Parenchyma and Meninges	2 (4)
Pituitary lesion	2 (4)
Encephalomalacia	1 (2)
Meningioma mimic	1 (2)
MRI Brain (N=52)
Optic Nerve/Chiasm	12 (23)
Meninges	11 (21)
Parenchyma and Meninges	9 (17)
Hydrocephalus	5 (10)
High T2 signal	4 (8)
Cavernous Sinus	3 (6)
Pituitary	3 (6)
Meningioma mimic	3 (6)
Encephalomalacia	1 (2)
Normal	1 (2)
Parenchyma only	2 (4)
Spine MRI Regions (N=19)
Cervical	8 (42)
Thoracic	6 (32)
Cervical and Thoracic	5 (26)
Spine MRI abnormalities (N=19)
Cord parenchyma and meninges	13 (68)
Cord parenchyma only	4 (21)
Cord atrophy	1 (5)
Meninges only	1 (5)

* Two patients had Brain MRI abnormalities fitting in more than one of the chosen categories