Table 2

Radiological features on CT (and MRI in case 2) of nine patients with orbital xanthogranulomas

Case number	Proptosis	Globe displacement	Mass characteristics	Optic nerve	Extraocular muscles	Retrobulbar fat	Lacrimal glands	Bone involvement	Intracranial extension
1	present	downward	partially enhancing infiltrative fat and soft tissue mass in right upper and lower lid—extension around globe. Later left lower lid swelling	normal	right all enlarged	increased density	normal	none	none
2	present	downward	enhancing soft tissue mass and fat in right upper lid with extension posterior to globe. Left lower lid swelling	normal	enlarged right superior rectus	normal	normal	none	none
3	present	none	right upper/lower preseptal soft tissue and fatty mass—posterior extension around globe	normal	enlarged right lateral rectus	normal	normal	none	none
4	present	downward	heterogeneous density right soft tissue mass with single high density fleck	encased superiorly	infiltration of right superior rectus	normal	normal	present	present
5	absent	none	bilateral soft tissue and increased fat in upper lids—extension into superior orbits	normal	early infiltration of superior recti	normal	bilateral enlargement	none	none
6	present	none	bilateral infiltrative soft tissue masses in upper lids with increased fat; calcified fleck in left mass	normal	enlarged superior recti and left lateral and medial recti	normal	left enlarged	none	none
7	present	downward	infiltrative right soft tissue mass	normal	enlarged right superior rectus	normal	right enlarged	none	none
8	present	none	right upper/lower preseptal soft tissue mass and prolapse of retrobulbar fat	normal	enlarged right superior and inferior recti	increased density	right enlarged	none	none
9	absent	none	right upper/lower preseptal soft tissue thickening	normal	enlarged right lateral rectus	normal	right enlarged	none	none