Case 2. Case 2. A 66-year-old man who received epidural anesthesia and underwent MR imaging 2 days (A and B), 2 months (C and D), and 5 months (E and F)

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.

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.

A 50-year-old man with MD. Axial thin-section CT image shows decreased distance between the vertical limb of the posterior semicircular canal and the posterior.

Subsidence of LT-CAGE devices at L5–S1.

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)

Type 1 pedicle marrow signal intensity changes associated with an early to progressive pars fracture and absence of signal intensity changes in a terminal.

MR images in different patients with SIFs

Acute osteopenic compression fracture of the L1 vertebral body simulating metastasis. Acute osteopenic compression fracture of the L1 vertebral body simulating.

A 61-year-old man with brain metastases from primary lung cancer.

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.

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

Typical MR images of the L2 vertebral body metastasis with pathologic fractures reveal a sharply defined lytic lesion. Typical MR images of the L2 vertebral.

MR images of vertebrae in a 58-year-old woman with a history of long-term steroid use for treatment of a brain tumor. MR images of vertebrae in a 58-year-old.

A 38-year-old man with 6-week history of lumbar pain related to physical exertion. A 38-year-old man with 6-week history of lumbar pain related to physical.

Case 10, an epidural hematoma (type D)

A 75-year-old man with a posterior epidural disk migration

Case 2, an 82-year-old man. Case 2, an 82-year-old man. MR images of the cervical spine, obtained 4 hours after a fall, reveal a large SEH in the dorsal.

A, A 25-year-old man with tetraplegia after a diving accident.

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.

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

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.

Nonenhanced sagittal T1-weighted MR image (500/11/1) in a 37-year-old woman with AIDS and chronic anemia (hemoglobin level, 8.2 mg/dL) shows diffuse abnormal.

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.

Metastatic melanoma in a 56-year-old man

Two different patients with type 3 large CPCs containing tumor.

Sagittal T1-weighted (A) and coronal T2-weighted (B) MR images show the frontoparietal intracalvarial mass lesion that was hypointense on T1-(A) and hyperintense.

Localization of spinal cord schistosomiasis.

A, Schematic rendering of PSO

Motor vehicle crash involving 31-year-old man.

An axial T2-weighted MR image (A) reveals mixed signal intensities with minimal surrounding edema in the right posterior mobile tongue. An axial T2-weighted.

Images reveal arachnoid granulations in a 54-year-old man with headaches who had normal results of an MR imaging study.A, Sagittal reconstruction image.

A, A sagittal fat-saturated T2-weighted image demonstrates increased signal intensity (arrow) in the superior endplate from an acute compression fracture.

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.

MR images obtained 6 days after injury of a 38-year-old man who experienced the sudden onset of pain and point tenderness referable to the L2 level immediately.

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 (600/12/1) in a 48-year-old woman with breast cancer who presented with headache and fatigue.

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.

Selected MR images obtained through the brain and orbits 3. 0 and 2

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

Patient 18 had typical orthostatic headache.

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.

An 82-year-old man with a 3-week history of severe progressive low back pain. An 82-year-old man with a 3-week history of severe progressive low back pain.

Sagittal noncontrast T1WI MR imaging of the cervical, thoracic, and upper lumbar spine demonstrates a circumferential high signal intensity (arrows) in.

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

Coronal T1-weighted contrast-enhanced MR image obtained in January of 1999 at the onset of right hearing impairment shows increased enhancement of the.

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 68-year-old woman with acute back pain of 15-day duration.

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, Axial diffusion-weighted image (b = 1000) demonstrates increased signal intensity in the head of the right caudate nucleus (arrow).B, Axial apparent.

Sagittal T1-weighted MR image of the pituitary gland in a term neonate (born at gestational week 38) obtained near term (corrected age of 39 weeks; 7 days.

Orbital lymphoma (A–C) compared with OIS (D–F).

Sagittal MR images of patient 8 showing thoracolumbar EDC 1 day post-LP. Sagittal MR images of patient 8 showing thoracolumbar EDC 1 day post-LP. A, Noncontrast.

A 90-year-old woman with severe midback pain.

Case 1. Case 1. A, Sagittal reconstructed CT scan performed same day as vertebroplasty shows postvertebroplasty appearance with hyperattenuated bone cement.

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

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

A, Immediate postoperative sagittal T1-weighted image shows a C-shaped flap underlying the operative defect (white arrow). A, Immediate postoperative sagittal.

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.

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.

C2 metastasis in a 60-year-old male patient with renal cell carcinoma.

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.

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.

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,

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

Presentation transcript:

Case 2. Case 2. A 66-year-old man who received epidural anesthesia and underwent MR imaging 2 days (A and B), 2 months (C and D), and 5 months (E and F) after the epidural catheter was removed.A, On this fat-suppressed T2-weighted fast SE image, lesion in the posterior epidural space from C3 to T1 (arrows) is isointense relative to CSF. Fresh compression fracture of the C6 and C7 vertebral bodies is hyperintense.B, On this sagittal fat-suppressed enhanced T1-weighted image, lesion in the posterior epidural space from C1 to T1 (arrows) is inhomogeneously enhancing.C, Although the signal intensity of the lesion has not changed on this fat-suppressed T2-weighted fast SE image, its extent is reduced, now extending from C5 to T1 (arrows). Epidural lesion has a hypointense area (arrowhead).D, On this fat-suppressed enhanced T1-weighted image, lesion (arrows) has decreased in size and is enhanced homogeneously.E and F, Fat-suppressed T2-weighted fast SE (E) and fat-suppressed enhanced T1-weighted (F) images do not clearly depict the lesion. Ichiro Ikushima et al. AJNR Am J Neuroradiol 2005;26:991-995 ©2005 by American Society of Neuroradiology