What is it?An orbital tumor may originate in the orbit, reach the orbit by local extenstion from the paranasal sinuses, or arrive by metastases through the blood stream. Diagnosis depends heavily on imaging.
How does it present?
Proptosis is the major sign; pain is not always present. The conjunctiva may be variably hyperemic. Restricted eye motion may cause diplopia. Ptosis or lid retraction may be present.
These signs may also be caused by orbital cellulitis or non-infectious orbital inflammation, as in Graves' disease, and rheumatic diseases. (See Common Ophthalmic Manifestations of Rheumatic Diseases.)
What to do?
Order an to determine the location and extent of the tumor.
Refer urgently for further management, which usually involves surgery unless the tumor is metastatic.