Orbital compartment syndrome (OCS) is a visual threatening ocular emergency. We report a 50-year-old male with acute presentation of OCS, a rare manifestation of idiopathic orbital inflammatory disease. At presentation, high intraocular pressure was reduced by prompt lateral canthotomy and cantholysis. The disease responded to systemic steroids and treatment resulted in good visual outcome. Detail evaluation and early detection and treatment are mandatory to prevent permanent vision loss.
Orbital Pseudotumor

No abstract available.
Blepharoptosis ; Myositis* ; Orbital Myositis ; Orbital Pseudotumor

To evaluate characteristic CT findings of orbital pseudotumor and to define differentialpoints from other pathology, the authors retrospectively reviewed CT of 19 patients who were prooen to have orbital pseudotumor by clinical course and, in some cases, biopsy. A variety of CT findings including extraocular muscle thickening(11 cases), streaky infiltration of retroorbital fat(11 cases), mass formation(10 cases), optic nerve thickening (6 cases), conjunctival thickening (5 cases), scleral thickening(4cases), enlarged lacrimal gland(4 cases) and destruction of orbital bone (2 cases) were observed. Thickening of the anterior portion and irregular margin were characteristic findings of extraocular muscle and optic nerve lesions. Mass formation predominantly occurs in the anterior portion of the orbit. In most cases more than two orbital structures are involved by lesion.
Biopsy ; Humans ; Optic Nerve ; Orbit* ; Orbital Pseudotumor* ; Pathology ; Retrospective Studies

A 14 years old boy visited our hospital in Oct. 1974 for massive proptosis and visual disturhance of his left eye with rapid onset after blunt trauma. So diagnosed as orbital pseudotumor clinicalIy and treated with high dosage of steroid and antibiotics and the result was excelIent.
Adolescent ; Anti-Bacterial Agents ; Exophthalmos ; Humans ; Male ; Orbit* ; Orbital Pseudotumor*

BACKGROUND: An orbital pseudotumor typically presents with periorbital pain, cranial nerve palsies and proptosis. Although visual deterioration is not unexpected in this pathology, its presentation solely with visual loss is unusual. CASE REPORT: In this short report, we summarize a case of orbital pseudotumor which presented solely with a decrease in visual acuity, and discuss the clinical and radiological findings. CONCLUSIONS: This atypical presentation likely resulted from the orbital pseudotumor originating in the optic foramen, leaving the neurovascular structures of the superior orbital fissure untouched initially. In the early clinical period, an orbital pseudotumor may manifest itself solely by visual loss. It should therefore be included in the differential diagnosis of visual pathologies-even in the absence of orbital pain and symptoms related to ocular movements.
Diagnosis, Differential ; Exophthalmos ; Headache ; Orbit ; Orbital Pseudotumor ; Paralysis ; Visual Acuity

PURPOSE: To investigate the normal exophthalmometric values in children and facilitate the exophthalmic evaluation in pediatric patients with orbital disease. METHODS: We measured 516 eyes in 258 children aged 3 to 9 years without any orbital disease such as thyroid ophthamopathy, orbital pseudotumor and orbital wall fracture. We considered the association of age, sex, binocular variance, inter rim distance and axial length with the exophthalmometric values. Axial length was measured in only 120 eyes of60 patients who underwent operation for strabismus. RESULTS: The mean exophthalmometric values in the patients was 12.43+/-1.55 mm. The exophthalmos had a significant positive correlation with the age, axial length and inter rim distance. There were significant differences in exophthalmometric values by sex in children aged from 8 to 9 years but no significant difference by binocular variance. There were significant differences in the inter-rim distance related to sex. CONCLUSIONS: The exophthalmometric values in children had significant correlation with age, sex, axial length, and inter-rim distance. There was a significant increase of inter-rim distance in males compared to females. Knowing the mean exophthalmometric values in children would be useful with the exophthalmometric reference in pediatric patients with orbital disease.
Aged ; Child ; Exophthalmos ; Eye ; Female ; Humans ; Male ; Orbit ; Orbital Diseases ; Orbital Pseudotumor ; Strabismus ; Telescopes ; Thyroid Gland

Idiopathic orbital myositis, a subgroup of previously so called inflammatory orbital pseudotumor, occurred with acute onset periorbital pain, eyelid swelling, proptosis, and ophthalmoplegia. Currently many pathologist and ophthalmologist agreed the term pseudotumor or Tolosa-Hunt syndrome and They classified some cases as characterized histologic and computerized tomographic evidence of inflammation of extraocular muscles, good responsiveness to prednisone, remission and exacerbation, with recurrence, but generally benign condition. The possibility of idiopathic orbital myositis being an immune-mediated process has been discussed. Some believe many of such cases have been grouped under the term Tolosa-Hunt syndrome. It is onloy in the last decade that computerized tomographic scanning has allowed precise localization of the alterations to orbital and retro-orbital strcutures. The term idopathic orbital myositis is precise insofar as it indicates the structures primarily involved ocular muscles. We report a case of idiopathic orbital myositis withr review of literatures.
Exophthalmos ; Eyelids ; Inflammation ; Muscles ; Ophthalmoplegia ; Orbit* ; Orbital Myositis* ; Orbital Pseudotumor ; Prednisone ; Recurrence ; Tolosa-Hunt Syndrome

Intraorbital pseudotumors are inflammatory lesions of the orbit of unknown etiology, which initially mimic an orbital neoplasm. The authors report a case of intraorbital pseudotumor presenting with painful exophthalmos. A 45-year-old male patient had a two-week history of acute progressive exophthalmos and diplopia. Right orbit was explored through transcranial route and the mass was biopsied, which revealed dense inflammatory cells and fibrosis. He subsequently underwent corticosteroid therapy and symptoms improved gradually. The literatures were reviewed.
Diplopia ; Exophthalmos ; Fibrosis ; Humans ; Male ; Middle Aged ; Orbit ; Orbital Neoplasms ; Orbital Pseudotumor

Idiopathic orbital myositis, a subgroup of inflammatory orbital pseudotumor may occur with acute-onset periorbital pain, diplopia, and, in most cases, eyelid swelling. Proptosis, extraocular muscle motility restrictions, and response to oral prednisolone administration were characteristic. Although the CT appearance of orbital myositis is often helpful, the findings are not pathognomonic: correlation with history, clinical finding, and therapeutic response must be considered in making the diagnosis. The results of corticosteroid therapy on the orbital pseudotumor caused by orbital myositis were as follows: 1. The effect of corticosteroid was more effective in single extraocular muscle involvement than in that of a multiple extraocular muscle. 2. Early age of onset and early treatment after symptom increased the effectiveness of corticosteroid therapy.
Age of Onset ; Diagnosis ; Diplopia ; Exophthalmos ; Eyelids ; Orbit* ; Orbital Myositis* ; Orbital Pseudotumor* ; Prednisolone

Orbital pseudotumor, also known as idiopathic orbital inflammatory syndrome(IOIS), may have protean clinical manifestations. IOIS should be determined with a diagnosis of exclusion, with evaluation directed toward eliminating other causes of orbital disease. Orbital MRI and CT are the important diagnostic tests, but serologic studies are necessary to exclude a systemic causes. Biopsy is usually not performed currently, as the risk of producing damage to vital structures within the orbital outweighs the benefits. Patients with multiple recurrences, or those unresponsive to therapy, should be treated of biopsy sample extraction. Corticosteroids are the mainstay of therapy and administered for several months to ensure remission. Radiotherapy may be used in patients who fail to respond to steroids or who have a rapidly progressive course. We analysed the data of two patients. There were no specific complications related to this treatment. We discussed the radiologic findings, treatment procedures, and other orbital diseases.
Adrenal Cortex Hormones ; Biopsy ; Diagnosis ; Diagnostic Tests, Routine ; Humans ; Magnetic Resonance Imaging ; Orbit* ; Orbital Diseases ; Orbital Pseudotumor* ; Radiotherapy ; Recurrence ; Steroids