INTRODUCTION Graves' ophthalmopathy is characterized by an increase in the volume of orbital soft tissue contents and an associated increase in intraorbital pressure. Surgical expansion of bony orbital volume is therefore an effective method of treating moderate to severe exophthalmos. Numerous correlations between specific decompression procedures and reduction of proptosis have been made. The...

BACKGROUND AND PURPOSE Optic neuropathy (ON), a serious complication of Graves ophthalmopathy, is often subclinical and masked by symptoms of orbitopathy. We examined herein bony and soft-tissue CT features associated with ON, including an angular assessment of orbital apex capacity, and their usefulness in the risk prediction of ON. MATERIALS AND METHODS The CT scans of 41 patients with Grav...

Orbital 'auto-decompression' in TED (thyroid eye disease) is a well recognised phenomenon in older patients where lax orbital septa allow proptosis to decompress the orbit. Bony 'auto-decompression' in TED is a different entity which to the best of our knowledge has not been previously reported. We describe such a case which presented spontaneously, in the absence of trauma or bony pathology, a...

This study investigated the topographic relationships among the eyeball and four orbital margins with the aim of identifying the correlation between orbital geometry and eyeball protrusion in Koreans. Three-dimensional (3D) volume rendering of the face was performed using serial computed-tomography images of 141 Koreans, and several landmarks on the bony orbit and the cornea were directly marke...

Mucoceles are cystic lesions of the paranasal sinuses which develop as a result of accumulation of mucous secretion due to obstruction of the ostium of the sinuses. Despite their benign behavior, they may enlarge progressively and project into adjacent structures by destructing the bony walls of the sinuses. Frontal mucoceles may get infected and extend towards orbital cavity and compress the o...

PURPOSE The bony skeleton serves as the scaffolding for the soft tissues of the face; however, age-related changes of bony morphology are not well defined. This study sought to compare the anatomic relationships of the facial skeleton and soft tissue structures between young and old men and women. METHODS A retrospective review of CT scans of 100 consecutive patients imaged at Duke University...

INTRODUCTION Fibrous dysplasia is a benign tumour of the bones and is a disease of unknown aetiology. This report discusses a case of proptosis and visual deterioration with associated bony mass involving the right orbit. CASE PRESENTATION A 32-year-old Nigerian man of Yoruba ethnic origin presented to the eye clinic of our hospital with right-eye proptosis and visual deterioration of 7-year ...

OBJECTIVE To clarify the spatial orientation relevant to the endoscopic sinus surgery (ESS) for the frontal sinus. METHODS Various dimensions of structures around the frontal recess were measured on 256 CT images of 128 Japanese patients using the multiplanar reconstruction technique. Measurements done in this study were: the distance from the nostril to the narrowest point of the frontal rec...

Orbital hypertelorism is an increased distance between the bony orbits and can be caused by frontonasal malformations, craniofacial clefts, frontoethmoidal encephaloceles, glial tumors or dermoid cysts of the root of the nose, and various syndromic or chromosomal disorders. We report a series of 7 cases of hypertelorism that were treated in our hospital. The underlying causes in our series were...