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Spinal Cord Herniation • 10,146 views
This is a case for Prof. Dr. Dillon. It is in press by our neurosurgeons and us, for the use of Duragen. Idiopathic herniation of the thoracic spinal cord: a case report and technique note. U...
Neuro Protocols • 7,715 views
Alisa Gean is doing a great job getting a group together to share and collaborate neuro protocols. This would be a great place from members to share protocols, and open a discussion about the best ima...
Possible SIH with Spinal Subdural Hygroma, What Next? • 6,341 views
[caption id="attachment_602" align="aligncenter" width="407" caption="Sag T1. Tonsils are not particularly low and no sagging of the base of the brain."][/caption] [caption id="attachment_603" alig...
Cervical Spine Nomenclature • 5,060 views
The ASNR/ASSR nomenclature document was specific for the lumbar spine. I would be interested in your opinion on the correct terminology for cervical spondylosis: what terms and why. Specifically, t...
Brachial Plexus MRI Protocol • 4,646 views
BP MRI Protocol Fall is upon us and so is the lecturing season! Like years before, this Fall I will be giving my brachial plexus lecture several times and the most commonly asked question by the au...
Intracranial Hypotension: Advice on Best Treatment • 4,485 views
Middle age female patient diagnosed with Spontaneous intracranial hypotension. Has multiple (approx 23) perineural cysts. Has undergone several blood patches and artificial CSF infusions without rel...
Embolization of Brain Arteriovenous Malformations for Cure • 4,180 views
The editorial comment in the AJNR of Jan 09 by Jayaraman and Cloft is worthy of careful scrutiny, I believe. Although in my personal experience with Onyx and NBCA, final cure rates of brain AVMs from ...
Aunt Mickey (They Look the Same until You Undress Them). Internal Capsule Infarct or Something Else? • 3,892 views
This 30 year old hypertensive female smoker presented with acute onset of right hemiparesis. Her history also included OCP use and dyslipidemia. MRI demonstrated an acute infarct in the posterior limb...
Liver Hemangiomas and Vascular Lesions of the Brain • 3,871 views
[gallery] I have a patient with 15 large liver hemangiomas and two partly calcified lesions in brain. Does anyone know of associated liver hemangiomas and vascular lesions in the brain?
More on DWI of Head and Neck Lesions • 3,870 views
Yesterday I wrote a short comment in the utility of DWI in the evaluation of head and neck lesions. While reading cases in the afternoon I came across a new patient with a retinoblastoma. This pa...
Tag Archives: orbit
Aunt Mickey (They Look the Same until You Undress Them). Carotid-Cavernous Fistula or Something Else?
A middle age woman presented with left progressive proptosis. A contrast enhanced CT was done and showed enlargement of the left superior ophthalmic vein on the axial plane (see below). A coronal image confirmed this abnormality and demonstrated that the extraocular muscles and retro-orbital fat had a normal appearance.
Physical examination showed no chemosis, vision loss or cranial nerve palsies. Because of this the patient was brought back for repeat contrast enhanced CT of the orbits with Valsalva maneuver. This study showed mild additional enlargement of the already prominent left superior ophthalmic vein and also of the right sided one … Continue reading >>
CT Still Useful for Retinoblastoma?
The article “Is CT Still Useful in the Study Protocol of Retinoblastoma?“, published July 17 in the Publication Preview section of AJNR, confirms that even when high-field MRI is not available, CT can be avoided in the workup of the patient with suspected retinoblastoma, when MRI is combined with a good ophthalmoscopic exam and ocular sonography. Certainly with 3D imaging at 3T, the detection rate with MRI could reasonably be expected to be even higher, allowing us to “Image Gently” and more accurately.
The authors state that “CT is still the method of choice for detecting intraocular calcium … Continue reading >>
RE: DWI for Head and Neck Lesions – Acute Ischemic Optic Neuropathy
Here’s another case for the value of DWI for head and neck lesions.
This patient had left central retinal artery occlusion and acute ischemic optic neuropathy. There is restricted diffusion in the anterior left optic nerve which is much more obvious than the mild perineural enhancement on coronal postcontrast images.