[Pseudotumoral amyloidosis of the orbit].

A case of orbital amyloid pseudotumour is reported; this rare condition typically present as a ptosis followed by slowly growing orbital neoplasm, in middle-aged women. CT-scan disclose an extra-conal, extra-osseous, calcified mass; preoperative diagnosis of this rare condition might help in avoiding recurrence, probably due to incomplete excision. Pathophysiology of these amyloid deposits remain unknown.