Patient 1, a 50-year-old man presenting with a severe headache, diplopia, and the sensation of a “thick” tongue. Patient 1, a 50-year-old man presenting.

Slides:

Advertisements

Similar presentations

Patient 4. Patient 4. Sinonasal carcinoma t(15;19). A, CT scan demonstrates a midline sinonasal tumor (arrow) with lytic bony destruction of the paranasal.

Advertisements

MR images and plain radiograph of an 82-year-old woman who had compression fractures and osteonecrosis at the L3 vertebral body. MR images and plain radiograph.

Axial T1-weighted image after contrast administration (A) and a FLAIR image (B) demonstrating a left parietal subcortical DVA with deep venous drainage.

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,

Acquired cochlear nerve deficiency in a 14-year-old patient with hearing loss after meningococcal meningitis at the age of 6 months (patient A3). Acquired.

A, Brachial neuritis with long thoracic nerve neuritis.

A and B, Sagittal (A) and axial (B) fast spin-echo images of the cervical spine before treatment demonstrate diffuse increase in signal intensity (arrows)

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.

A–D, MR images of an 83-year-old man who was diagnosed with osteonecrosis at the L1 vertebral body. A–D, MR images of an 83-year-old man who was diagnosed.

Patient 1. Patient 1. A, An axial T1-weighted postcontrast image with fat saturation (600/13/2 [TR/TE/excitations]) demonstrates asymmetrical enhancement.

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.

66-year-old woman with well-differentiated squamous cell carcinoma of lower gingiva.A, Axial T1-weighted MR image of metastatic submandibular node (arrow)

Case 2. Case 2. Organized hematoma arising from antrochoanal polyp in a 12-year-old girl. A, Contrast-enhanced axial CT scan shows marked irregular nodular.

Accessory salivary tissue has a variable appearance and location in the oral cavity. Accessory salivary tissue has a variable appearance and location in.

Case 1. Case 1. A, Unenhanced axial CT scan through the nasopharyngeal region shows thickening of the nasopharyngeal tissues at the level of the left torus.

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.

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

Normal MR imaging findings in a 59-year-old man with right SSHL

Patient 5, a 33-year-old man presenting with severe headache and sinus congestion. Patient 5, a 33-year-old man presenting with severe headache and sinus.

Persistent weakness of right lower limb 2 months after EV71 infection in a 16-month-old infant. Persistent weakness of right lower limb 2 months after.

MR images and plain radiograph of a 73-year-old man who had compression fractures at T12, L1, L3, and L4 vertebral bodies and osteonecrosis at L1 vertebral.

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.

Sarcoid. Sarcoid. A, Axial T1-weighted spin-echo unenhanced image (600/9/2), obtained through the proximal right thigh, reveals an isointense (to muscle)

A 45-year-old woman with a history of alcohol abuse had changes in consciousness and ocular abnormalities.A, No signal intensity alterations are seen on.

Patient 6, a 35-year-old man presenting with headache and bilateral deficits of CN III, VI, VII, X, and XII. The patient had been previously treated with.

Type 1 pedicle marrow signal intensity changes and associated soft tissue hyperintensity on T2- and STIR-weighted sequences associated with pars fractures.

Aberrant course of the ICA in a 25-year-old man presenting with pulsatile tinnitus. Aberrant course of the ICA in a 25-year-old man presenting with pulsatile.

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.

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.

EACC with intramural bone fragments.

Case 3.A, Axial trace diffusion-weighted image (5700/138 [TR/TE], b = 1000 s/mm2) obtained 24 hours after the onset of symptoms shows bilateral thalamic.

CT scans obtained 2 months later

Midline (A) and parasagittal (B) non-contrast-enhanced T1-weighted MR images (500/11/1) in a 73-year-old healthy woman show the normal high signal intensity.

Case 1, a 69-year-old woman. Case 1, a 69-year-old woman. MR images of the thoracolumbar spine, obtained 10 hours after sudden-onset severe back pain,

A 7-day old neonate, the older sister of patient 1, also presented with neonatal encephalopathy.Axial fast spin-echo T2-weighted image (130/4200/1[TE/TR/NEX])

Off-midline non-contrast-enhanced sagittal T1-weighted MR image (500/11/1 [TR/TE/excitations]) in a 25-year-old healthy man shows the normal appearance.

Traumatic stump neuroma.

Patient 18 had typical orthostatic headache.

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.

Case 3. Case 3. A 24-year-old woman with an oro- and hypopharyngeal lesion.A, Contrast-enhanced axial CT scan shows a soft-tissue mass in the right hypopharynx.

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.

A 56-year-old man with fever for 1 week.

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.

Case 1: 49-year-old man with Candida albicans infection.

Axial contrast-enhanced CT scan shows bilateral facial soft-tissue tumor infiltration, bilateral enlarged middle cranial fossae (arrowheads), bilateral.

Contrast-agent–enhanced T1-weighted MR images (700/15) obtained in a 71-year-old man with skin cancer, who had TMJ tenderness and discomfort in the left.

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.

Hypertrophic neuropathy.

Laryngeal amyloidoma in a 27-year-old man with long-standing juvenile rheumatoid arthritis and progressive hoarseness. Laryngeal amyloidoma in a 27-year-old.

A 34-year-old woman with SLE with APS

A, Sagittal T1-weighted image demonstrates a mildly hypointense well-defined mass arising from the posterior aspect of the tongue abutting the inferior.

Spondylolysis in an 8-year-old boy.

Case 7, 75-year-old man with history of squamous cell carcinoma of the larynx status postradiation found to have an enlarging mass in the left parotid.

Neurothekeoma of tongue in a 15-year-old girl.

Compressive neuropathy.

Case 3: 54-year-old woman with Aspergillus osteomyelitis.

The “white gray sign.” Axial high-resolution 3D inversion recovery fast-spoiled gradient-echo T1-weighted image demonstrates decreased gray-white contrast.

Patient 10. Patient 10. A 67-year-old man after radiation therapy at an outside hospital for base-of-tongue cancer. A and B, Axial contrast-enhanced CT.

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

A, Sagittal fast spin-echo (FSE) T2-weighted image shows a hypointense mass (arrowheads) in the anterior aspect of the spinal canal that extends from C3.

Normal sciatic nerve. Normal sciatic nerve. A, Coronal T1-weighted spin-echo image (600/10/2) illustrates the normal longitudinal fascicular appearance.

A 19-year-old man with a nonenhancing WHO grade III anaplastic astrocytoma. A 19-year-old man with a nonenhancing WHO grade III anaplastic astrocytoma.

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

Axial (A)and coronal (B) CT images demonstrate a hyperattenuated mass eroding the roof of the glenoid fossa, abutting the Eustachian tube, and remodeling.

Patient 4, a 72-year-old man presenting with headache, dysphagia, and progressive hoarseness. Patient 4, a 72-year-old man presenting with headache, dysphagia,

Case 2. Case 2. A, Coronal unenhanced T1-weighted image through the base of the skull. The left pterygopalatine fossa appears infiltrated by soft tissue.

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

Presentation transcript:

Patient 1, a 50-year-old man presenting with a severe headache, diplopia, and the sensation of a “thick” tongue. Patient 1, a 50-year-old man presenting with a severe headache, diplopia, and the sensation of a “thick” tongue. A, Sagittal T1-weighted image (600/11/2 [TR/TE/NEX]) demonstrates abnormally low signal intensity in the inferior clivus. B, Axial T1-weighted image (600/11/2) demonstrates abnormal soft tissue isointense to muscle infiltrating submucosally within the nasopharyngeal soft tissues, extending posteriorly to abut the carotid arteries (arrowheads), and replacing the normal hyperintense fatty marrow within the lower clivus. C, Axial T2-weighted fast spin-echo image with fat saturation (4000/102/2) demonstrates mildly increased signal intensity within the infiltrated soft tissue as compared with normal muscle. In addition, there is fluid in the mastoid air cells and middle ear cavities bilaterally, presumably related to Eustachian tube dysfunction or obstruction or both. D, Contrast-enhanced axial T1-weighted spin-echo image with fat saturation (600/11/2) demonstrates moderately intense enhancement of the infiltrative soft tissue. Some areas of nonenhancement may represent areas of infarcted or necrotic muscle. E, Axial T1-weighted spin-echo image (600/11/2) from a follow-up MR examination 16 months after the initial study demonstrates normalization of clival signal intensity (white arrows), as well as considerable reduction in bulk of the previously noted abnormal pre- and paraclival soft tissue. F, Contrast-enhanced axial T1-weighted spin-echo image with fat saturation (600/11/2) from the same follow-up examination demonstrates marked reduction of enhancement, with a normal appearance to the nasopharynx and prevertebral muscles. An ill-defined area of linear enhancement just at and anterior to the hypoglossal canal on the right (arrow) is likely extending along the course of the hypoglossal nerve. Of note, this patient’s hypoglossal palsy has persisted despite resolution of all other symptoms. Patrick C. Chang et al. AJNR Am J Neuroradiol 2003;24:1310-1316 ©2003 by American Society of Neuroradiology