BACKGROUND Orbital inflammatory pseudotumor is a rare inflammatory condition of unknown cause that may extend intracranially, usually as a dural-based infiltrate. Here we report the first case of orbital pseudotumor presenting with intra-axial Magnetic Resonance Imaging (MRI) changes. CASE PRESENTATION A 57-year-old white female, with a 3-month history of headache and right palpebral edema, p...

Idiopathic orbital inflammatory pseudotumor is a chronic neoplasm-like inflammatory reaction, usually affecting the orbital tissues of both eyes and orbit. Isolated optic nerve involvement by the idiopathic inflammatory process is a rare finding and very few reports are available. Here a case of an isolated orbital nerve inflammatory pseudotumor presenting with gradually progressive unilateral ...

A 42-year-old male presented to the emergency department with the complaint of irritation in the left eye for 1.5 months. He also complained of decreased and blurry vision in the left eye. He had a history of non-insulindependent diabetes mellitus (NIDDM), hypertension, and bipolar disorder and was noncompliant with his medications. His visual acuity was decreased on the left. His pupils were 3...

  Background and Objective: Inflammatory pseudotumor  is a lesion composed of proliferating spindle cells with mixed inflammatory infiltrates. Some authors have proposed the name inflammatory myofibroblastic tumor as a proper descriptive term rather than the vague inflammatory pseudotumor. The aim of this study was to verify the myofibroblastic origin of spindle cells in idiopathic orbital inf...

Twenty adult patients with orbital pseudotumor were studied with orbital venography and magnification arteriography. Computed tomography (CT) scans were obtained in 14 patients. Occlusive and constrictive changes of the proximal segments of the superior ophthalmic veins were the most frequent vascular abnormalities. The affected ophthalmic arteries were often attenuated but not occluded. Myosit...

background and objective: inflammatory pseudotumor  is a lesion composed of proliferating spindle cells with mixed inflammatory infiltrates. some authors have proposed the name inflammatory myofibroblastic tumor as a proper descriptive term rather than the vague inflammatory pseudotumor. the aim of this study was to verify the myofibroblastic origin of spindle cells in idiopathic orbital inflam...

Orbital pseudotumor, is a heterogeneous group of disorders characterised by orbital inflammation and is a rare clinical entity and a diagnosis of exclusion. We report two cases with typical clinical manifestation and magnetic resonance images, but unresponsive to corticosteroid treatment which turned out to be caused by herpes simplex virus type I. Viral etiology must be carefully evaluated, es...

The objective of this study is to report and discuss a rare and inflammatory cause of exophthalmos. This report describes a patient with exophthalmos, who was initially diagnosed with euthyroid Graves' with good response to therapy. After 8 years of follow-up, she had recurrence of symptoms and a new evaluation revealed the final diagnosis of orbital pseudotumor. Orbital pseudotumor is an uncom...

To describe the clinical characteristics of orbital pseudotumor, a retrospective analysis was performed on patients with orbital pseudotumor at Siriraj Hospital for ten years. Forty-nine patients (24 males and 25 females; 62 eyes) with a mean age of 43.75 years were included (a mean follow-up of 25 months). Thirty-six patients (73.5%) had unilateral disease. The clinical features were proptosis...