Patient 2: 52-year-old man with a sensory deficit in the first, second, and third divisions of the left trigeminal nerve and a sensory deficit on the right.

Slides:

Advertisements

Similar presentations

High-signal-intensity lesions on T2-weighted MR images

Advertisements

A 49-year-old man presenting with left abducens and right facial nerve palsies. A 49-year-old man presenting with left abducens and right facial nerve.

Low SI on axial T2-weighted images as a sign of malignancy.

A 27-year-old man with recurrent disk herniation confirmed by reoperation. A 27-year-old man with recurrent disk herniation confirmed by reoperation. A,

A 21-year-old man with recurrent left S1 sciatica and radiculopathy by electromyography. A 21-year-old man with recurrent left S1 sciatica and radiculopathy.

Two axial images from the same case of a facial nerve schwannoma involving the right mastoid segment of the facial nerve canal. Two axial images from the.

A 30-year-old man with PSA

Thin-section (2.5-mm) axial T1-weighted spoiled gradient-echo gadolinium-enhanced images of the brain obtained at 1.5 T for Gamma knife localization (trigeminal.

A 30-year-old woman with Zika virus infection with Guillain-Barré syndrome. A 30-year-old woman with Zika virus infection with Guillain-Barré syndrome.

Radiation neuropathy. Radiation neuropathy. A 69-year-old woman with a history of breast carcinoma and external beam radiation therapy 2 years before imaging.

Intraosseous temporal bone meningioma in a 45-year-old woman who presented with left-sided hearing loss and tinnitus. Intraosseous temporal bone meningioma.

Image shows appearance of septum within dural sinus in a 68-year-old woman with normal results of an MR imaging examination. Image shows appearance of.

Deficient cochlear nerve in a 60-year-old patient with a 50-year history of left hearing loss after a motor vehicle accident (patient A10). Deficient cochlear.

TOS with C8 neuropathy. TOS with C8 neuropathy. A 17-year-old girl (trumpet player) with left arm and hand weakness in an ulnar distribution, exacerbated.

A 30-year-old woman with Zika virus infection with Guillain-Barré syndrome. A 30-year-old woman with Zika virus infection with Guillain-Barré syndrome.

Patient 2: CNS vasculitis in a 37-year-old woman with systemic lupus erythematosus. Patient 2: CNS vasculitis in a 37-year-old woman with systemic lupus.

Brain and spine MR imaging of a 48-year-old woman with Zika virus infection and encephalitis and myelitis. Brain and spine MR imaging of a 48-year-old.

Types I and II LTS. Axial contrast-enhanced T1-weighted MR image obtained in a 55-year-old man with a type I LTS on the left and a type II LTS on the right.

A 7-month-old boy with left hemimegalencephaly

Coronal (A, B) and sagittal (D) sections of MIP reformations of a MDCTA performed on a 4-row-detector system in a 54-year old woman (patient 10) with an.

42-year-old male patient with follow-up neck CT for lymphoma at 70 kVp (A) and corresponding previous CT at 120 kVp (B). 42-year-old male patient with.

Patient 1, a 15-day-old neonate who presented with encephalopathy

Case 4: 25-year-old woman with pulsatile tinnitus.

Dislodged fusion device.

A, 55-year-old woman who underwent superficial parotidectomy 22 years before recurrence. A, 55-year-old woman who underwent superficial parotidectomy 22.

Intracranial hypertension in a 30-year-old woman presenting with headaches and tinnitus. Intracranial hypertension in a 30-year-old woman presenting with.

Patient 9. Patient 9. A 31-year-old man with mental status changes and seizure activity.A, T2-weighted axial MR image shows bilateral frontal and right.

Patient 5. Patient 5. Initial axial, half cut, and magnified MR images of a 39-year-old man with spontaneous intracranial hypotension who presented with.

Bilateral cochlear nerve absence in a 7-year-old patient with severe dysplasia and bilateral absence of the cochlea (patient C10). Bilateral cochlear nerve.

Normal apical ligament (arrow) and normal anterior atlantoaxial ligament (arrowhead) in the diagram (A) and the midsagittal T2-weighted MR image (B) in.

Bony cochlear nerve canal atresia in a patient with CND

Patient 12. Patient 12. A 43-year-old woman with headache, blurred vision, and mental status change.A, T2-weighted axial MR image shows bilateral centrum.

Jaw-jerk reflex. Jaw-jerk reflex. Diagram shows the reflex arc subserving the jaw-jerk reflex. (Vmes indicates mesencephalic nucleus of the trigeminal.

Undifferentiated carcinoma with perineural spread in a 43-year-old male patient. Undifferentiated carcinoma with perineural spread in a 43-year-old male.

Patient 7. Patient 7. A 55-year-old man with a history of lethargy, fatigue, and hearing loss. Axial CTM (A and C) and axial MRM (B and D) images. CT shows.

A 64-year-old man with oculomotor nerve palsy from a partially thrombosed giant cavernous sinus aneurysm. A 64-year-old man with oculomotor nerve palsy.

Axial T2-weighted MR imaging at the level of the internal auditory canals, demonstrating a large, homogeneous mass filling the right internal auditory.

Ill-defined margins as a sign of malignancy.

Coronal and axial sketches of the medulla, which correspond to the medullary regions seen on the T2-weighted axial images in Fig 1, demonstrate the anatomical.

A 49-year-old man with abducens nerve palsy from a partially thrombosed PICA aneurysm projecting into the brain stem. A 49-year-old man with abducens nerve.

Patient 4: 71 year-old woman with primary angiitis of the CNS

Signal characteristics of PML

A, Axial high-resolution MR imaging in a 5-month-old girl with clinically suspected right-sided brachial plexus palsy shows avulsion injury of the right.

A–C, Sagittal T1-weighted (A), sagittal T2-weighted (B), and axial T2-weighted (C) MR images of the cervical spine in a patient with severe myelopathy.

T2-weighted MR imaging appearance of a healthy 60-year-old woman (A), a 66-year-old woman with idiopathic Parkinson disease (B), and a 16-year-old female.

Coronal postcontrast T1-weighted image of the orbits in patient 1 demonstrates a heterogeneously enhancing ovoid lesion involving the right medial rectus.

A 63-year-old man with left L5 radiculopathy on the electromyographic study, who underwent an operation 12 months ago. A 63-year-old man with left L5 radiculopathy.

A 47-year-old woman with a history of alcohol abuse presented with ataxia, changes in consciousness, and ocular abnormalities. A 47-year-old woman with.

A 67-year-old man with intraorbital, infraorbital nerve, and frontal nerve lesions. A 67-year-old man with intraorbital, infraorbital nerve, and frontal.

A 34-year-old woman with SLE with APS

42-year-old woman with very subtle imaging findings of optic neuropathy due to cat scratch fever (patient 5, Table 2).A and B, Axial (A) and coronal (B)

Coronal T2 (A) and axial T1 FLAIR (B), T2 (C), and SWI (D) MR images of a 6-day-old boy. Coronal T2 (A) and axial T1 FLAIR (B), T2 (C), and SWI (D) MR.

MR images of the brain (axial sections, fluid-attenuated reversion recovery sequences) show the symmetric hyperintensities (arrows) involving the pyramidal.

Axial T2-weighted image (A) demonstrates focal cortical dysplasia (arrow) centered in the left anterior temporal lobe in a right-handed patient. Axial.

A 42-year-old man experienced low-back pain and fever for 5 days.

Images from 1988 obtained in a patient with AIDS with CMV-induced ARN preceding retrobulbar optic neuritis.A, CT scan shows a shrunken left globe with.

A 64-year-old man with an intra-abdominal abscess (patient 3).

A, Axial T2-weighted image (3500/90/2) shows a well-defined deep right occipital white matter lesion (asterisk) and a subcortical linear hyperintensity.

Axial T2-weighted MR image shows normal flow void in the right internal jugular vein (arrows), whereas flow-related enhancement can be seen in the left.

A, Axial T2-weighted image from a routine high-resolution 3T screening study to evaluate internal auditory canal lesions shows the right CNIII entering.

MR images in a 69-year-old woman with cervical and thoracic back pain.

A, Stretch Injury to right sided brachial plexus.

A, Axial T1- weighted MR image shows a predominantly isointense lesion in the right parietal bone. A, Axial T1- weighted MR image shows a predominantly.

Short-interval follow-up cervical MR imaging of a 67-year-old male ASIA A patient with SCI. T2-weighted FSE images were obtained from an initial MR imaging.

Case 1, 62-year-old female with 2-year history of firm, painless left parotid mass. Case 1, 62-year-old female with 2-year history of firm, painless left.

Persistent diffusion abnormalities in the brain stem of patient 2.

WD in a 14-year-old boy with dysarthria and dystonia with abnormal signal in the putamen (A1, A2). WD in a 14-year-old boy with dysarthria and dystonia.

A 75-year-old man with a left brachial zoster-associated plexopathy.

MR images show capsular and cortical lesions (panels 6 and 7); schematic distributions of the lesions are presented. MR images show capsular and cortical.

KD involving bilateral buccal spaces in a 52-year-old man.

Presentation transcript:

Patient 2: 52-year-old man with a sensory deficit in the first, second, and third divisions of the left trigeminal nerve and a sensory deficit on the right side of the body. Patient 2: 52-year-old man with a sensory deficit in the first, second, and third divisions of the left trigeminal nerve and a sensory deficit on the right side of the body. Blink reflex recorded to left supraorbital nerve stimulation evoked a normal R1 response, whereas R2 responses were bilaterally delayed. R1 and R2 reflex recordings to right supraorbital nerve stimulation were normal. This lesion corresponds to the location of the left descending trigeminal tract and its nucleus in the dorsolateral part of the medulla oblongata. Axial T2-weighted MR image confirms the presence and location of the lesion in the left dorsolateral part of the medulla oblongata (arrow).fig 5. Patient 3: 56-year-old woman with a sensory deficit in the second division of the trigeminal nerve. Blink reflex recorded to left supraorbital nerve stimulation showed the R1 to be absent and the R2 components delayed bilaterally. This lesion corresponds to the location of the left principal sensory nucleus in the pons with involvement of the descending trigeminal tract. Axial T2-weighted MR image (3500/90) confirms the location of the lesion in the left lower dorsal half of the pons, including the region of the left principal sensory nucleus (arrow). Charles B. L. M. Majoie et al. AJNR Am J Neuroradiol 1999;20:1119-1125 ©1999 by American Society of Neuroradiology