Orbital Pseudotumour

Abstract

5 cases of orbital pseudotumour are presented in which other general or local pathology is excluded. The characteristics of the pictures given in the CT were examined and treatment and evolution are discussed. In 2 of the cases biopsies were performed. We consider that the orbital pseudotumour is in most of the cases a primary orbital myositis. The degree of involvement of the adjacent orbital structures depends on its intensity.

Long-term Outcome in 7 Patients With Idiopathic Orbital Myositis

“…Idiopathic orbital myositis is part of a clinical entity designated as idiopathic orbital inflammation or orbital inflammatory disease which has been previously called orbital pseudotumor. [12][13][14][15][16] Idiopathic orbital inflammation is a noninfectious benign inflammatory disease and shows a mass or masses involving any part of the orbit including lacrimal gland, lacrimal sac, eyelid, soft tissue, or extraocular muscles. In the case that only extraocular muscles are involved, the term "idiopathic orbital myositis" is used.…”

Bilateral exudative retinal detachments as the presenting features of idiopathic orbital inflammation

“…As in our case, the diagnosis is further solidified by prompt clinical response to systemic corticosteroid. Diagnostic biopsy was not performed because there were complete recovery after corticosteroid treatment, potential operative risk related to the intraconal location of the lesions and possible exacerbation after surgery 6 . However, biopsy should be indicated in cases with atypical clinical course and poor response to steroid to rule out leukaemia, lymphoma and other diseases.…”