Purpose.

To study the possibilities of functional multispiral computed tomography (fMSСT) in the diagnosis of orbital pseudotumor.

Materials and methods. The article presents clinical observation of patient S., 30-year-old, male, who was presented to an ophthalmologist in August 2016 with complaints of pain in the left eye and decreased visual acuity after suffering from acute respiratory infections. The patient underwent a clinical examination, according to the results of which the patient was diagnosed with "pseudotumor inflammation of the left orbit" with the need to consult an oncologist and conduct an additional examinations to exclude an orbit neoplasm.

Results. According to the data of clinical and instrumental examinations, as well as during fMSCT of the orbits, the patient was diagnosed with “pseudotumorous inflammation of the left orbit”. The patient underwent an orbitotomy for taking a biopsy, and histological examination of the material revealed an autoimmune fibrosing inflammation, which confirmed the diagnosis.

Conclusion. The difficulties in7 diagnostics and treatment of the orbital pseudotumor determine the relevance of further study of this disease and the possibilities of fMSCT for obtaining additional diagnostic information for this pathology.