1/228. Orbital dirofilariasis: MR findings.dirofilariasis is a helminthic zoonosis occurring in many parts of the world. We report the findings in a 61-year-old woman who had painless right exophthalmos caused by orbital dirofilariasis. A vivid worm was embedded inside an inflammatory nodule in the right orbit. On T1-weighted MR images, the parasite was visible as a discrete, low-intensity, tubular signal in the center of the nodule surrounded by contrast-enhancing inflammatory tissue.- - - - - - - - - - ranking = 1keywords = pain (Clic here for more details about this article) |
2/228. Giant cell reparative granuloma of the orbit.PURPOSE: To report a case of giant cell reparative granuloma occurring in the orbit and to discuss its clinical, radiologic, and histopathologic characteristics in contrast with other similar lesions. methods: A 38-year-old man developed pain and mild proptosis of the left eye. Computed tomography and magnetic resonance imaging demonstrated an intraosseous cystic orbital mass. Excisional biopsy disclosed giant cell reparative granuloma of the orbit. RESULT: At 11 months' follow-up, the patient had normal vision, with no tumor recurrence. CONCLUSION: Giant cell reparative granuloma of the orbit is a rare benign fibro-osseous proliferation that is generally seen in young adulthood. It should be considered in the differential diagnosis of orbital fibro-osseous proliferation. Surgical excision and curettage is the therapeutic method of choice.- - - - - - - - - - ranking = 1keywords = pain (Clic here for more details about this article) |
3/228. aspergillus mycetoma in a secondary hydroxyapatite orbital implant: a case report and literature review.OBJECTIVE: The authors describe the first case report of a fungal abscess within a hydroxyapatite orbital implant in a patient who had undergone straightforward secondary hydroxyapatite implant surgery. DESIGN: Case report and literature review. INTERVENTION: Four months postoperatively after pegging and 17 months after original implant placement, chronic discharge and socket irritation became evident. Recurrent pyogenic granulomas were a problem, but no obvious area of dehiscence was present over the implant. The peg and sleeve were removed 31 months after pegging (44 months after original placement of the implant). The pain and discharge did not resolve, and the entire hydroxyapatite orbital implant was removed 45 months after sleeve placement and 58 months after initial implant placement. The pain and discharge settled rapidly. MAIN OUTCOME MEASURES: Cultures and histopathology. RESULTS: Results of bacterial cultures were negative. Results of histopathologic examination of the implant disclosed intertrabecular spaces with multiple clusters of organisms consistent with aspergillus. CONCLUSIONS: Persistent orbital discomfort, discharge, and pyogenic granulomas after hydroxyapatite implantation should cause concern regarding potential implant infection. The authors have now shown that this implant infection could be bacterial or fungal in nature. This is essentially a new form of orbital aspergillus, that of a chronic infection limited to a hydroxyapatite implant.- - - - - - - - - - ranking = 14.124982765705keywords = discomfort, pain (Clic here for more details about this article) |
4/228. Lung cancer, proptosis, and decreased vision.A 48-year-old man presented to the emergency department with a 3-day history of decreased vision in a painful proptotic right eye. The patient was being treated with chemotherapy and radiation for non-small cell lung carcinoma. Examination showed visual acuity of hand motions, decreased motility, and an afferent pupillary defect on the right, consistent with an orbital apex syndrome. neuroimaging revealed "dirty" orbital fat and no paranasal sinus disease. Orbital biopsy initially showed only fibrosis; however, on subsequent biopsies, nonseptate hyphae later identified as mucormycosis was recovered. The patient survived with exenteration and systemic amphotericin b.- - - - - - - - - - ranking = 1keywords = pain (Clic here for more details about this article) |
5/228. Tarsal switch procedure for the surgical rehabilitation of the eyelid and socket deficiencies of the anophthalmic socket.PURPOSE: To describe a tarsal transfer procedure, which we have named the "tarsal switch," to correct the eyelid malpositions and camouflage the socket defects of acquired anophthalmos. methods: The technique consists of an upper eyelid tarsectomy, with transfer of the autologous tarsoconjunctival graft to the posterior lamella of the lower eyelid. RESULTS: The operation was performed in 21 anophthalmic patients. In 16 patients with eyelid malpositions, excellent results (within 1 mm of the fellow eye) were attained in 100% of the patients with ptosis, and in 88% of patients with lower eyelid retraction. In the remaining 5 patients, orbital volume loss with secondary implant migration, inferior prosthetic displacement and eyelid asymmetry predominated. In these patients the anophthalmic orbital defects and eyelid asymmetry were masked well. patient satisfaction was high and complications were few during an average follow-up interval of 16 months. CONCLUSION: The tarsal switch procedure is useful in managing the eyelid malpositions and masking the orbital deficiencies of the anophthalmic socket.- - - - - - - - - - ranking = 0.4128930788897keywords = upper (Clic here for more details about this article) |
6/228. Recurrent steroid-responsive trismus and painful ophthalmoplegia.A 63-year-old woman experienced two episodes of trismus and painful ophthalmoplegia at an interval of six years. She suffered left visual loss, and enhanced CT scan and MR imaging revealed heterogeneous enlargement of the left extraocular muscles extending to the orbital apex. In addition, the left pterygopalatine fossa was filled with a mass isointense with muscle without evidence of surrounding tissue invasion; 67Ga scintigraphy showed high uptake in this lesion. Steroid administration dramatically resolved the trismus, and the mass in the orbit and extraorbit vanished completely. orbital pseudotumor is characterized by self-limited, relapsing, steroid-responsive painful ophthalmoplegia, and this case could be a variant of this entity with inflammation extending into the extraorbital area.- - - - - - - - - - ranking = 6keywords = pain (Clic here for more details about this article) |
7/228. nasolacrimal duct obstruction and orbital cellulitis associated with chronic intranasal cocaine abuse.OBJECTIVE: To report the association of acquired nasolacrimal duct obstruction and orbital cellulitis in patients with a history of chronic intranasal cocaine abuse. methods: Retrospective, consecutive case series. Results of imaging, histopathologic examinations, and clinical courses of these patients were studied. RESULTS: Five women and 2 men (mean age, 41 years) with a history of chronic intranasal cocaine abuse (mean, 11 years; range, 5-20 years) presented with epiphora and in some cases acute onset of periorbital pain, edema, and erythema associated with fever. The suspicion of intranasal cocaine abuse was made on anterior rhinoscopy with the detection of an absent nasal septum and inferior turbinate. Computed tomographic and magnetic resonance imaging findings in 4 patients included extensive bony destruction of the normal orbital wall architecture, opacification of the sinuses, and the presence of an intraorbital tissue mass. Histopathologic examination of the nasolacrimal duct in 2 patients and of the orbital mass in a third patient revealed marked chronic inflammation with fibrosis causing secondary nasolacrimal duct obstruction. Six patients were treated with systemic antibiotics followed by dacryocystorhinostomy in 3 patients, and a pericranial flap to insulate the exposed orbit in 1 patient. CONCLUSIONS: Chronic intranasal cocaine abuse can result in extensive bony destruction of the orbital walls with associated orbital cellulitis, and should be included in the differential diagnosis of acquired nasolacrimal duct obstruction. Anterior rhinoscopy is very helpful in establishing the correct diagnosis in these patients.- - - - - - - - - - ranking = 1keywords = pain (Clic here for more details about this article) |
8/228. Aneurysmal bone cyst of the orbit: a case report and review of literature.Aneurysmal bone cyst is a benign fibroosseous lesion which rarely occurs in the orbit. We report on a 7-year-old girl with aneurysmal bone cyst of the orbit who presented with painless proptosis and diplopia. optic nerve compression resulted in field loss and delayed visual evoked potentials. Radiological and histological features are discussed. The lesion was excised via a frontal craniotomy and the orbital roof reconstructed with a prefabricated titanium plate. Post-operatively a rapid resolution of the proptosis and diplopia followed. Previous reported cases of this rare entity in the orbit are also reviewed.- - - - - - - - - - ranking = 1keywords = pain (Clic here for more details about this article) |
9/228. Orbital edema resulting from Haller's cell pathology: 3 case reports and review of literature.Sinuspathology must be considered when rapid onset of unilateral orbital edema is found in the absence of ophtalmologic signs. Urgent medical treatment is necessary in these patients when headache, fever, facial pain and vision problems are present. However, symptoms may be more subtle. Three female patients with unilateral orbital edema and facial pain are presented. inflammation of an ipsilateral Haller's cell should be considered as one of the potential causes of unilateral orbital edema and it can be the only cause. To our knowledge this is the first report of Haller's cell disease resulting in an orbital complication.- - - - - - - - - - ranking = 4.0576739408327keywords = headache, pain (Clic here for more details about this article) |
10/228. Orbital drainage from cerebral arteriovenous malformations.OBJECTIVE: To describe the neuro-ophthalmic findings in patients with orbital drainage from cerebral arteriovenous malformations (AVMs). methods: We reviewed the records of 100 consecutive adult patients with cerebral AVMs who presented to our institution during a 4-year period. All patients with orbital drainage were identified, and their neuro-ophthalmic evaluations were reviewed. RESULTS: Three patients (3%) were identified with orbital drainage from a cerebral AVM. The first patient presented with typical chiasmal syndrome (reduced visual acuity, bitemporal hemianopia, and optic atrophy). magnetic resonance imaging demonstrated a large left temporal and parietal lobe AVM with compression of the chiasm between a large pituitary gland and a markedly enlarged carotid artery. The second patient presented with headaches and postural monocular transient visual obscurations. Examination revealed normal visual function with minimal orbital congestion and asymmetrical disc edema, which was worse in the left eye. magnetic resonance imaging revealed a large right parietal and occipital lobe AVM without mass effect or hemorrhage and an enlarged left superior ophthalmic vein. The third patient had no visual symptoms and a normal neuro-ophthalmic examination; a right parietal lobe AVM was discovered during an examination for the cause of headaches. CONCLUSION: Orbital drainage from cerebral AVMs is rare. Manifestations may include anterior visual pathway compression, dilated conjunctival veins, orbital congestion, and asymmetrical disc swelling.- - - - - - - - - - ranking = 4.1153478816654keywords = headache (Clic here for more details about this article) |
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