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])

Slides:

Advertisements

Similar presentations

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)

Advertisements

Herpes encephalitis type 2 in a 2-week-old girl

A 76-year-old man with a carcinoma ex pleomorphic adenoma (case 2).

Images from the case of a 3-month-old triplet with worsening congestive heart failure.A, Volume-rendered MR angiogram shows, from an inferior prospective,

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.

56-year-old woman with diffuse large B cell lymphoma

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.

Serial axial T2-weighted images (2000/110/2 at treatment, 3400/100/4 at 6 months and 4000/100/3 at 10 months and 36 months after treatment) in a 52-year-old.

Unilateral AFP and transient urinary retention in 18-month-old girl with lumbosacral radiculomyelitis. Unilateral AFP and transient urinary retention in.

Patient 8. Patient 8. Neonate of estimated 39-week gestational age with a lacerated, prolapsed umbilical cord. A, Axial T2-weighted fast spin-echo image.

A 7-month-old boy with left hemimegalencephaly

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

63-year-old patient with right hemiparesis.

Pseudoresponse. Pseudoresponse. A 47-year-old man with GBM. A reduction of the enhancing portion of the lesion is observed 1 day after initiation of cediranib.

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.

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.

T2-weighted images of a patient with an infarction within the anterior MCA branch territory on day 5 (patient 15) show high SI changes within the ipsilateral.

Radiculomyelitis causing bilateral AFP and urinary retention.

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

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.

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.

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.

Axial high-convexity T2-weighted images (TE/TR = 119/7900) from younger (A–C) and older (D–F) subjects. Axial high-convexity T2-weighted images (TE/TR.

Involvement of the frontal and parietal lobes in patients with isolated cortical hyperintensities. Involvement of the frontal and parietal lobes in patients.

Type 1 pedicle marrow signal intensity changes associated with degenerative facet disease. Type 1 pedicle marrow signal intensity changes associated with.

Patient 8. Patient 8. A, Follow-up at day 15. MSE is still identified in the thrombosed vein. B, A hyperintense spot is present in the lumen of a cortical.

Hypoplasia of vertebral body and facet joint L5.

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.

Ill-defined margins as a sign of malignancy.

Images of a 37-year-old man who was a pedestrian in a traffic accident in January 1992; he was hit by an automobile while under the influence of alcohol.

T2-weighted (A), FLAIR (B), and isotropic DWI (C) of a unilateral lesion in a patient with an acute or chronic presentation of worsening right-sided weakness.

Posterior fossa SDH in a neonate delivered via SVD

Signal characteristics of PML

Case 2: 62-year-old woman with loss of visual acuity, right-sided chemosis, and exophthalmos. Case 2: 62-year-old woman with loss of visual acuity, right-sided.

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.

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

Follow-up prenatal MR imaging at 36 weeks’ gestation.

Wallerian degeneration in a 76-year-old man with a large right MCA infarct (6 days after onset).A, T2-weighted image shows a hyperintense right MCA infarct,

52-year-old African-American man with seizure disorder.

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.

Sagittal T1-weighted MR image of the pituitary gland in a preterm neonate (born at gestational week 28) obtained near term (corrected age of 39 weeks;

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

Comparison of sagittal images.

Case 2. Case 2. A, Axial T1-weighted image (spin-echo: TR/TE, 650/9.3) shows a lobulated mass in the right parotid gland, with a low-signal-intensity well-defined.

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

Conventional MR imaging findings in patients with ALS

A 43-year-old male patient with headaches (case 33).

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

Longitudinal T1-weighted spin-echo signal-intensity changes in the DN (A–C) and GP (D–F) in a female patient with MS after receiving 0 (A and D), 1 (B.

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

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

Patient 2.A, Axial T1-weighted image (400/14/2) shows a hyperintense mass in the right vestibule (arrow).B, Axial T2-weighted fast spin-echo image (4000/102/4)

Case 6: 61-year-old man with sudden right crural hemiparesis.

A and B, Normal heavily T2-weighted turbo spin-echo (2800/1100 ms, flip angle 150°, acquisition time 7 seconds) MR sialograms obtained before (A) and after.

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.

Patient 3 was an 8-week-old female infant with a history of seizures that started 3 days before MR imaging was performed. Patient 3 was an 8-week-old female.

A 69-year-old man with small-cell carcinoma from the lung

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.

Persistent diffusion abnormalities in the brain stem of patient 2.

A–C, Axial T2-weighted images 7 days after the ictus, demonstrating punctate hyperintensities throughout the white matter, on a background of slightly.

FIG 4. Plots of the Loes scores, based on double-echo spin-echo MR images, obtained at different follow-up examinations for 22 patients with ALD. The T1-weighted.

Case 2: 52 year-old man with intracranial injuries sustained in a motor vehicle accident. Case 2: 52 year-old man with intracranial injuries sustained.

Patient 8. Patient 8. Chronologic FLAIR and T1-weighted MR images of a 47-year-old woman with spontaneous intracranial hypotension. She had a 1-week history.

51-year-old man after bone marrow transplantation for IgA multiple myeloma with mental status decline. 51-year-old man after bone marrow transplantation.

A 48-year-old woman with a carcinoma ex pleomorphic adenoma (case 1).

Twelve-year-old girl with coinfection of JE and NCC (patient 5).

Presentation transcript:

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]) of the midbrain shows similar hyperintense lesions in the posterior midbrain (arrowheads). 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]) of the midbrain shows similar hyperintense lesions in the posterior midbrain (arrowheads). Pek-Lan Khong et al. AJNR Am J Neuroradiol 2003;24:1181-1183 ©2003 by American Society of Neuroradiology