Radiology Notes

My notes during radiology residency, fellowship, and beyond…

Archive for the ‘eye’ Category

Orbital Calcifications

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  • retinoblastoma
  • astrocytic hamartoma
  • choroidal osteomas
  • phthisis bulbi
  • drusen
  • prior retinal detachment
  • retinopathy of prematurity
  • Sturge-Weber
  • von Hippel-Lindau
  • infection: toxocara, CMV

Case Review Series

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Written by lmwong

October 19, 2010 at 8:12 am

Posted in differential, eye, neuro, orbit

Thyroid Ophthalmopathy

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  • most common cause of proptosis
  • 90% bilateral
  • inferior rectus and medial rectus muscle body enlargement with sparing of tendon insertions
  • hyper or euthyroid
  • become fibrotic and fatty change
  • DDx:
    • myositis
    • pseudotumor
    • vascular: fistula, thrombosis, AVM

Written by lmwong

January 25, 2010 at 11:01 am

Posted in eye, neuro, orbit, thyroid

Globe Intraocular Calcification Differential

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  • neoplasms
    • retinoblastoma
    • astrocytic hamartomas
    • choroidal osteomas
  • metabolic
    • hyperparathyoidism (hypercalcemia)
  • degenerative
    • optic drusen
    • phthisis bulbi
    • prior retinal detachment
    • retinopathy of prematurity
  • congenital
    • Sturge-Weber syndrome
    • von Hippel-Lindau syndrome
  • Infection
    • toxocara
    • CMV

Written by lmwong

January 23, 2010 at 8:24 pm

Posted in differential, eye, neuro, orbit

Ocular Lesions

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  • retinoblastoma
  • persistent hyperplastic primary vitreous
  • anophthalmos
  • melanoma
  • optic nerve drusen

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Written by lmwong

January 9, 2010 at 12:44 am

Posted in differential, eye, orbit

Extraconal & Intraconal Tumors

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  • cavernous hemangioma
  • lymphangioma
  • lymphoma
  • rhabdomyosarcoma

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Written by lmwong

January 9, 2010 at 12:41 am

Posted in differential, eye, orbit

Pediatric Orbital Tumors

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  • retinoblastoma
  • rhabdomyosarcoma
  • optic nerve glioma
  • lymphangioma
  • teratoma

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Written by lmwong

January 9, 2010 at 12:39 am

Optic Nerve/Sheath Enlargement

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  • optic neuritis
  • optic nerve glioma
  • optic sheath meningioma
  • intracranial hypertension
  • lymphomatous and leukemic infiltration
  • sarcoidosis
  • advanced Grave’s disease
  • central retinal vein occlusion
  • hemangioblastoma
  • hemorrhage

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Written by lmwong

January 9, 2010 at 12:36 am

Posted in differential, eye, orbit