orbita, globo ocular, la conjuntiva capsula de tenon paredes orbitarias: superior ( techo): formada por el hueso frontal en su profundidad el ala menos del. Non-contrast CT is useful in the initial evaluation of orbital and globe trauma for the assessment of fractures, extra-ocular muscle herniation and. Aug 30, · “El torero Juan José Padilla sufre estallamiento de glóbulo ocular por cornada” EfektoTV Deportes: – Duration: Efekto Televisión 1,,

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Uveitis can be serious possibly leading to permanent visual loss.

The sclera is enveloped by the fibroelastic Tenon’s capsule, which fuses with the bulbar conjunctiva and is perforated posteriorly by the optic nerve sheath. Arch Pathol Lab Med.

Eye Globe Abnormalities on MR and CT in Adults: An Anatomical Approach

Imaging of orbital trauma. Bilateral episcleral fluid collections white asterisks with distortion of globes are likely due to scleral degeneration or necrosis. No choroidal detachment is detected. Hyperintense-not usually seen separately from underlying choroid. Anotated illustration of globe for comparison with MRI anatomy.

The sclera maintains intraocular pressure and is the insertion site for the extra-ocular muscles. The choroid merges with the ciliary body at the ora serrata and extends posteriorly to the optic nerve head. Anatomy and pathology of the eye: Additional avidly enhancing lesion is seen arising from lateral choroid of left globe without associated estallamientto detachment.


Vitreous Body The vitreous body is a gel-like fluid bounded by estallamienti posterior and anterior hyaloid membranes.

Eye Globe Abnormalities on MR and CT in Adults: An Anatomical Approach

Recent advances in MR and CT technology that allows for detailed visualisation of the globe has resulted in frequent, incidental detection of abnormalities. Understanding the anatomy is a key component in the structured approach to a differential diagnosis. The outer retinal pigment epithelium RPE is attached firmly to the choroid. Author information Article notes Copyright and License information Disclaimer. Fundoscopy facilitates detection of retinal detachments, while contrast-enhanced MRI plays an essential role in the assessment of an underlying cause such as a neoplasm.

Dedicated orbital MRI scans 1. Despite aggressive therapy, the outcome remains poor resulting in pthisis bulbi and visual loss. Optic nerve is labeled dashed black arrow. The radiologist has an important role in primary diagnosis contributing to appropriate ophthalmology referral, thereby preventing devastating consequences such as vision loss.

Malignant Melanoma Malignant melanoma is most commonly unilateral and may present with pain or decreased visual acuity. This structure provides nourishment to the retina 4. Dedicated orbital MRI study for gradual left visual loss. On MR and CT, posterior vitreous oculaar appears as a membrane within the vitreous cavity detached from the optic disc and attached at the ora serrata.


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Hypointense material in vitreous is suggestive of hemorrhage. Enhancing lesion is observed in region of fourth ventricle complicated by hydrocephalus not shown. Find articles by Premilla Pillay.

Posteriorly, choroidal detachments are limited by the insertions of the vortex veins; whereas, retinal detachments are limited by the optic disc producing a characteristic V shape 1. Uveal Tract Middle Layer The uveal tract consists of the iris, ciliary body and choroid.

Other scleral findings include scleral banding for treatment of retinal detachment Figs. Please review our privacy policy. Scleritis may be complicated by exudative chorioretinal detachment and glaucoma Fig. The globe occupies one third of the orbital volume, ochlar the vitreous humour representing two-thirds of the volume of the globe 2.

On MRI, the retina is in close apposition to the choroid in normal circumstances and cannot be discerned separately 1. Considerations include metastases highly likely given clinical history with estallamiemto melanoma no T1W hypointensity; images not shownless likely differential.

The episcleral space is a potential space that can extend between the fascia and the sclera 1.