• 제목/요약/키워드: White matter

검색결과 504건 처리시간 0.024초

담비의 개디스템퍼 바이러스 자연 감염례 (Canine distemper virus infection in a marten)

  • 우계형;김재훈;진영화;이남일;황선욱;서일복;안동준
    • 한국수의병리학회지
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    • 제3권1호
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    • pp.61-64
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    • 1999
  • A dead marten(Martes melampus) showing cough, ataxia and convulsion of hind limb followed by seizures, was submitted for diagnosis to the Pathology Division of the National Veterinary Research and Quarantine Service. In the gross lesions, lung was congested and consolidated and meningeal blood vessels were mildly congested. Histopathologic findings were diffuse interstitial pneumonia and nonsuppurative meningoencephalitis with malacia of cerebral and cerebellar white matter. Eosinophilic inclusion bodies were observed in neurons and astrocytes and oligodendroglial cells of brain and transitional epithelium of kidney. Using FA test and PCR method, specific antigens of canine distemper virus were demonstrated in the brain.

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Alexander씨 병 환아의 마취 관리 (Anesthetic Management of a Patient with Alexander's Disease -Case Report-)

  • 김범수;지대림;송선옥
    • Journal of Yeungnam Medical Science
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    • 제27권1호
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    • pp.47-51
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    • 2010
  • We present here the case of a 13-year-old male patient with Alexander's disease who underwent surgical correction of a femur fracture. Alexander's disease is a rare and fatal disorder that affects the white matter in the brain and it causes developmental delay, psychomotor regression, spasticity, megaloencephaly and seizure. The patient had the possibility of a seizure attack during the perioperative period. We discuss the anesthetic management of a patient with Alexander's disease and we review the relevant literature.

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The Changes in Axial and Radial Diffusivity in a Patient with Clinically Mild Encephalitis/Encephalopathy with a Reversible Splenial Lesion

  • Park, Ji Kang;Lee, Su Yun
    • Investigative Magnetic Resonance Imaging
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    • 제24권3호
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    • pp.174-177
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    • 2020
  • Multiple studies have established that mild encephalitis/encephalopathy with a reversible splenial lesion (MERS) exhibits reversible diffusion restriction in the white matter, including the splenium. There have been a few previous reports of the change in fractional anisotropy (FA) of MERS cases. Herein, we report the longitudinal changes in axial and radial diffusivity (AD and RD), and FA in a 15-year-old boy patient with MERS. Our case demonstrated that a MERS lesion had a significant drop of AD in the early period and gradual recovery. On the contrary, RD did not show any significant change.

An Immunohistochemical Study of Viral Antigen in Aborted Fetuses Naturally Infected by Bovine Viral Diarrhea Virus

  • Shin, Tae-Kyun
    • 한국수의병리학회지
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    • 제3권2호
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    • pp.73-76
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    • 1999
  • The tissue distribution and cellular localization of viral antigen in the brain of aborted fetus with bovine viral diarrhea virus(BVDV) infection was studied; BVDV antigens was detected in spleen, kidney, lung, eyelid as well as brain. In the brain, the virus was recognized in neurons and non-neuronal cells in the cerebellum and cerebrum. Many cells in the superficial layer and occasional Purkinje cells had BVDV antigens. As well, BVDV was also found in the perivascular cells, vascular endothelial cells and smooth muscle cells in the vessels and neuroglial cells in the white matter. This finding suggests that BVD virus favors infect progenitor cells in the brain, notably in the superficial layer of cerebellum, and damage normal development of cerebellum, which leads to cerebellar hypoplasia.

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요독증 환자의 양측 기저핵 병변에 의해 발생된 급성 파킨슨증 1예 (Acute Parkinsonism with Bilateral Basal Ganglia Lesions in A Patient with Uremia)

  • 박강민;김상진
    • Annals of Clinical Neurophysiology
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    • 제8권1호
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    • pp.91-93
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    • 2006
  • A 47-year-old male who had hypertension and diabetes mellitus for 7 years suddenly developed bradykinesia, generalized limb muscular rigidity, dysarthria and dysphagia. Uremia developed 5 months prior to this and he had been on hemodialysis. A T2-weighted brain MRI showed extensive hyperintensity over the bilateral basal ganglia, extending to the adjacent periventricular white matter. In T1-weighted images the lesions were hypointense. Supportive treatments were given and his symptoms improved. Exacerbation of glucose utilization failure or vasogenic edema is suggested as the etiology of basal ganglia lesions, but the exact underlying pathophysiology is unknown.

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흰쥐의 소뇌에서 selenium 방법에 의한 아연이 함유된 세포의 확인 (Identification of the Zinc-containing Cells in the Cerebellum of Rat by Selenium Method)

  • 조현욱;최은상
    • Applied Microscopy
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    • 제26권4호
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    • pp.411-420
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    • 1996
  • A zinc-specific method (selenium method) has been employed to identify the zinc-containing cells in the cerebellum of the rats. When rats were allowed to survive 24 hours after the sodium selenite administration, zinc selenide reaction products formed in zinc-containing cellular boutons are retrogradely transported to the somata of those boutons. And the zinc selenide products accumulated in somata of the cells can be rendered visible by silver amplification of developer. Zinc-containing cells identified by the method were Bergmann glial and granule cells. Labeled zinc-containing cells were absent in molecular layer and white matter of the cerebellum. In ultrastructural level, the zinc selenide products were located in lysosomes of somata of the zinc-containing cells.

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비화농성 뇌염을 동반한 개 수두증 1례 (A Case of Canine Hydrocephalus with Nonsuppurative Encephalitis)

  • 한정희;서강문
    • 한국임상수의학회지
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    • 제17권2호
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    • pp.470-474
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    • 2000
  • A Shih Tzu Puppy had clinical onset of anotexia crying and progression of neurological sings when enlargement of the cranial vault at 1 month old and died after showing clinical signs during 2 months period. Radiological and pathological examinations were performed. Radiological findings were homogeneous appearance of the calvaria with cortical thinning, loss of the normal convolutional skull markings and persistent fontanelles. Grossly enlargement of the cranial vault thinning of the bone and defective closure of the fontanelles were also observed. The entire subcortical area of the cerebral hemispheres with severe, dilatation of ventricles and cerebrospinal fluid(CSF) wits absent. There was parenchyma atrophy affecting chiefly in the white mater and the cerebral cortices, axon degeneration and necrosis and gitter cell infiltration in the whiter matter and the subependymal area. Mononuclear perivacular cuffing in the cerebrum and the pons was shown. Based on the radiological, gross and histopathological findings, this case was believed to have congenital hydrocephalus with nonsuppurative encephahitis. Possible etiology on the case is also discussed.

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Diffusion Tensor MRI and Fiber Tractography: Evaluation of Developmental CNS Anomaly: Preliminary Results

  • Lee, Seung-Koo;Kim, Dong-Ik
    • 대한자기공명의과학회:학술대회논문집
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    • 대한자기공명의과학회 2002년도 제7차 학술대회 초록집
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    • pp.86-86
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    • 2002
  • Purpose: To evaluate the white matter fiber configuration in various developmental CNS anomaly 대상 및 방법: Jubert Syndrome, congenital schizencephaly, callosal agenesis and hemiplegic cerebral palsy patients were evaluated by diffusion tensor MRI. All studies were performed using a 1.5T Philips Gyroscan Intern system. Diffusion weighted imaging was performed using single-shot echo planar imaging, with navigator echo phase correction and SENSE. Diffusion weighting was performed along six independent axes, using diffusion weighting of b=600s/$\textrm{mm}^2$. 128 matrix/zero filled to 256, 23cm FOV, 3mm slice thickness were used for imaging parameters. Data were processed on a Window-2000 PC equipped with IDL and PRIDE (Philips Medical System).

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광범위한 대뇌병터를 보인 대뇌형 부신척수신경병증 1예 (A Case of Cerebral Adrenomyeloneuropathy with Extensive Cerebral Lesions)

  • 김현정;민주홍;이광우
    • Annals of Clinical Neurophysiology
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    • 제9권2호
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    • pp.97-101
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    • 2007
  • We report a 31-year-old man with cerebral adrenomyeloneuronopathy variant, who presented as progressive gait disturbance. He had spastic paraparesis, hyperreflexia without Babinski's sign and sensory symptom. No adrenal insufficiency was noted. Brain MRI showed extensive high signal intensities in bilateral temporal lobes and posterior periventricular white matter in T2 weighed imaging without cerebrospinal fluid abnormality. His nerve conduction study showed sensorimotor demyelinating polyneuropathy and the level of saturated very-long-chain fatty acids was high in his plasma, although neuropsychological test was normal.

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