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TitleDescriptionCreator
76 Cerebral Venous Sinus Thrombosis with PapilledemaA case of superior sagittal sinus, right transverse sinus and right sigmoid sinus thrombosis, presenting with increased intracranial pressure (headaches, bilateral sixth palsy and papilledema). Figure 1 : Disc photos of the right and left eyes demonstrating bilateral disc edema. Figure 2 : Non-contr...Supharat Jariyakosol, MD; Valérie Biousse, MD
77 Pulsatile Proptosis from Sphenoid Wing Hypoplasia in Neurofibromatosis Type 1Clinical and radiologic features of greater wing sphenoid hypoplasia in the setting of neurofibromatosis type 1. Figure 1 : slit lamp examination showing Lisch nodules; Figure 2 : orbit CT scan (1); Figure 3 : orbit CT scan (2) with annotations. For visual examples of this disorder, please see the...Samuel Bidot, MD; Amit M. Saindane, MD; Valérie Biousse, MD
78 Large Right Hypophyseal Aneurysm Causing a Junctional ScotomaRight, multi-lobulated superior hypophyseal artery aneurysm measuring 1.6 x 1.2 x 2.2 cm with 6 mm neck causing a right junctional scotoma . Images from a brain CT with contrast, a brain CT angiography with contrast, cerebral angiogram, Humphrey visual fields and ocular fundus photographs are includ...Laurel N. Vuong, MD; Valérie Biousse, MD
79 Iris TransilluminationSingle case of iris transillumination in a patient with albinism. Figure 1 : Anterior segment photograph demonstrating reddish hue to iris in albinism Figure 2 : Slit lamp photograph with retroillumination demonstrating iris transillumination Figure 3 : Slit lamp photograph with retroillumination...Jason Peragallo, MD; Valérie Biousse, MD
80 Occipital Hemorrhagic Infarction Secondary to Bacterial Endocarditis-Congruent Homonymous Scotomatous Hemianopic DefectMRI features of occipital hemorrhage secondary to bacterial endocarditis Figure 1 : Humphrey visual fields showing a congruent homonymous scotomatous hemianopic defect Figure 2 : axial gradient echo T2*w brain MRI Figure 3 : axial T1w and T2w brain MRI Figure 4 : axial postcontrast T1w brain MRISamuel Bidot, MD; Amit M. Saindane, MD; Valérie Biousse, MD
81 Cavernous Sinus Meningioma Extending into the Orbital ApexSeptic left cavernous sinus and superior ophthalmic vein thrombosis, secondary to left maxillary tooth abscess. MRI characteristics Figure 1 : MRI Orbits (Coronal T2 with fat suppression) : Left periorbital edema (increased T2 signal, yellow arrows) extends inferiorly along the premalar tissues to t...Supharat Jariyakosol, MD; Valérie Biousse, MD
82 MRI Findings in Gliomatosis CerebriSingle case of gliomatosis cerebri identified on mulltiple MRI images pre- and post-contrast administration with axial and coronal views. Figure 1 : Axial brain MRI (T2) - Diffusely thickened and T2 hyperintense area (yellow arrows) centered within the genu of the corpus callosum with extension into...Jason Peragallo, MD; Valérie Biousse, MD
83 Occipital Infarction with Incomplete Congruent Homonymous HemianopiaCT appearance of a remote occipital infarction. Congruent homonymous hemianopia.Samuel Bidot, MD; Amit M. Saindane, MD; Valérie Biousse, MD
84 Coexisting Thyroid Eye Disease and Myasthenia GravisA case of coexisting thyroid orbitopathy and myasthenia gravis. External photographs of the eyes and eyelids, as well as images from an MRI of the orbits, are included. Figure 1 : External photograph of eyes showing right lid retraction and left upper lid ptosis. Figure 2 : External photograph of ...Devin D. Mackay, MD; Valérie Biousse, MD
85 MRI Findings in Optic Nerve and Chiasmal Glioma in ChildhoodMultiple cases of optic pathway gliomas are demonstrated using MRI imaging. The optic pathway gliomas are identified at multiple points in the optic pathways. Figure 1 : Patient 1: Axial orbital MRI (T1 postcontrast with fat suppression) showing thickening and enhancement of the right optic nerve a...Jason Peragallo, MD; Valérie Biousse, MD
86 Orbital and Cavernous Sinus Involvement by Herpes Zoster OphthalmicusA single case of the effects of herpes zoster is demonstrated using external photographs and MRI imaging. The effects demonstrated include the typical dermatomal rash as well as extraocular muscle invovlement and cavernous sinus involvement. Figure 1 : External photograph of dermatomal rash and s...Jason Peragallo, MD; Valérie Biousse, MD
87 Colloid Cyst HydrocephalusThis is a case of colloid cyst of the third ventricle complicated by severe hydrocephalus, raised intracranial pressure and papilledema. Figure 1: Fundus photographs demonstrating bilateral optic nerve head edema Figure 2a and 2b: T1-weighted axial brain MRI without contrast: Dilation of both later...Rabih Hage, MD; Valérie Biousse, MD
88 Fourth Nerve SchwannomaThis is a case of IVth cranial nerve schwannoma, showing an enhancement in the subarachnoid space consistent with the clinical presentation. Figure 1a : T1-weighted axial brain MRI Figure 1b : T1-weighted axial brain MRI : magnification of the brainstem Figure 1c : T1-weighted axial brain MRI : cr...Rabih Hage, MD; Valérie Biousse, MD
89 Large Frontal Meningioma with Mass Effect and Increased Intracranial PressureThis is a case of frontal meningioma presenting with raised intracranial pressure and bilateral papilledema responsible for visual loss. Figure 1: Goldmann visual field of the left eye. In the right eye, there was no response to the V4e. The visual field is severely constricted in the left eye. Fig...Rabih Hage, MD; Valérie Biousse, MD
90 Posterior Cerebral Artery Infarction from Vertebral Artery DissectionRight posterior cerebral artery ischemic infarction due to post traumatic (martial arts) left vertebral artery dissection with resulting right PCA occlusion. Left homonymous hemianopia due to right occipital lobe infarction and left hemisensory loss due to right thalamic infarction. Imaging of the a...Kristen Hudson, MD; Valérie Biousse, MD
91 Osseous Anatomy of the Optic CanalsAnatomic study of the optic canals using 3D reconstruction of CT scan images. Figure 1 : Orbital canal seen through the orbit Figure 2 : Optic canal seen from the intracranial side (1) Figure 3 : Optic canal seen from the intracranial side (2) Figure 4 : Optic canal : axial plane Figure 5 : Optic c...Samuel Bidot, MD; Amit M. Saindane, MD; Valérie Biousse, MD
92 Anterior and Posterior ScleritisA case of anterior and posterior scleritis secondary to idiopathic orbital inflammation, also known as orbital pseudotumor. Various imaging modalities are included to demonstrate optic disc edema, macular edema, and fluid in tenon's capsule which may be seen in posterior scleritis. Figure 1 : Exter...Joshua Levinson, MD; Valérie Biousse, MD
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