Inflammatory Pseudotumor of the Orbit, also known as Orbital Inflammatory Pseudotumor, is a non-neoplastic (non-cancerous) condition characterized by the presence of an inflammatory mass or swelling in the orbit, which is the bony cavity that houses the eye.
The term "pseudotumor" refers to the fact that this condition mimics a tumor in terms of its clinical presentation and imaging characteristics, but it is not a true neoplasm. Inflammatory Pseudotumor of the Orbit is considered to be part of a spectrum of orbital inflammatory diseases.
This condition typically presents with pain, eyelid swelling, proptosis (bulging of the eye), double vision, and/or decreased visual acuity. The cause of Inflammatory Pseudotumor of the Orbit is not well understood, but it is thought to be related to an abnormal immune response within the orbit.
Diagnosis of Inflammatory Pseudotumor of the Orbit is based on the patient's clinical presentation, imaging studies such as CT scan or MRI, and a biopsy of the mass to rule out other possible etiologies.
Treatment usually involves a combination of medical management with systemic corticosteroids (to reduce inflammation), immunosuppressive medications, and occasionally radiation therapy. Surgical intervention may be necessary in cases where vision is severely compromised or if there is significant mass effect on nearby structures.
Overall, the prognosis for patients with Inflammatory Pseudotumor of the Orbit is generally good, with most individuals experiencing resolution of symptoms and regression of the mass with appropriate treatment. However, recurrence of the condition is not uncommon.
