Crossed cerebellar diaschisis and crossed cerebellar atrophy: correlation of MR findings, clinical symptoms, and supratentorial diseases in 26 patients.

Tien, R D; Ashdown, B C

doi:10.2214/ajr.158.5.1566683

Cited by 131 publications

(106 citation statements)

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“…The phenomenon of diaschisis has been said to explain the development of CA in patients with epilepsy (18). Diaschisis is defined as a disturbance of function in one region of the brain, occurring as a result of a focal disturbance in a remote but anatomically connected region (19,20).…”

Section: Discussionmentioning

confidence: 99%

Significance of Cerebellar Atrophy in Intractable Temporal Lobe Epilepsy: A Quantitative MRI Study

et al. 2000

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Summary: Purpose: To determine the incidence of cerebellar atrophy (CA) in patients with intractable temporal lobe epilepsy, whether any clinical factors are significantly associated with CA, whether CA is unilateral or asymmetric and whether this feature has any relationship to the side of epileptogenicity, and whether the presence of CA is related to epilepsy surgery outcome.Methods: We developed a magnetic resonance imaging method of measuring the presurgical volumes of the cerebellar hemispheres of 185 patients who underwent temporal lobectomy for intractable epilepsy and of 80 control subjects. In addition, cerebellar volumes were normalized to the total brain volumes. CA was determined as being present when the measured volume was smaller than two standard deviations from the mean value found in control subjects.Results: Both absolute and normalized cerebellar volumes were found to be significantly reduced in the epilepsy patients compared with the control subjects. Without normalization of

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Section: Discussionmentioning

confidence: 99%

Significance of Cerebellar Atrophy in Intractable Temporal Lobe Epilepsy: A Quantitative MRI Study

et al. 2000

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“…CT and MRI can show a chronic infarct of MCA territory and atrophy of the contralateral hemicerebellum [33]. Confounding diagnosis in this case is reporting cerebellar hemiatrophy as an event, which is independent from the primary ischemic damage.…”

Section: Casementioning

confidence: 74%

Confounding Imaging Findings in Subacute-Chronic Cerebral Infarction

Zm¹

2017

Austin J Cerebrovasc Dis & Stroke

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Imaging findings which appear during the course of subacute and chronic cerebral infarct and which can lead to confusion for diagnosis is presented in a series of six patients. These include: luxury perfusion, fogging effect, hemorrhagic transformation, Wallerian degeneration, diaschisis, laminar cortical necrosis and encephalomalacia with exvacuum dilation.Keywords: Subacute infarct; Chronic infarct; Luxury perfusion; Fogging effect; Hemorrhagic transformation; Wallerian degeneration; Diaschisis; Laminar cortical necrosis; Laminar cortical necrosis encephalomalacia; Exvacuum dilation are found, due to luxury perfusion effect ( Figure 1A,B). This effect confounds the real diagnostic of ischemic stroke and the images were interpreted as a brain tumor. Case 2Seventy-one-year-old female patient who presented sudden right hemiplejia and loss of consciousness. CT was performed 4 hours after the event and was considered normal. Due to unfavorable evolution, the study was repeated after 8 days (Figure 2A,B) and after 13 days ( Figure 2C). In A and B an infarct of the right MCA can be seen, with mass effect on the neighboring ventricle (which is collapsed) and slight displacement of the midline. Hyperdensity within the affected vascular territory follows the organization of gyri, contrasting with IntroductionAfter occlusion of a cerebral artery, imaging studies confirm cerebral infarction during hyper acute and acute phases [1][2][3]. This allows engaging in therapeutic decisions with the aim of reducing damaged tissue and thus the subsequent sequels.Nevertheless, imaging findings can occur during subacute and chronic phases of cerebral infarction that could disguise or mimic other neurological processes. Although these findings have been described in the literature, in many occasions they are overlooked and can originate confusion when conducting imaging diagnosis. Among these are: luxury perfusion, fogging effect, hemorrhagic transformation, Wallerian degeneration, diaschisis, laminar cortical necrosis and encefalomalacia with exvacuum dilation [4][5][6][7][8][9].During the subacute-chronic phase of cerebral infarction, many physicians can inform the images as negative and may even not associate these imaging findings with primary ischemic damage, interpreting them as independent events, thus modifying the diagnosis The object of this work was to describe the occurrence of these imaging findings in a series of six patients with cerebral infarction during the subacute-chronic phase. The description of the subjects is represented in Table 1. Case Presentation Case 1Three-year-old female patient with left hemiparesis and previous diagnosis of brain tumor. After a simple ( Figure 1A) and contrasted ( Figure 1B) CT scan performed between day 3-7 an increased density in the territory irrigated by the MCA and gyriform enhancement

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“…The volume loss of the opposite cerebellar hemisphere could be at least in part explained by the phenomenon of crossed cerebellar diaschisis, in which functional disconnection of the cerebral cortex results in hypometabolism of the contralateral cerebellar hemisphere. Cerebellar volume loss is described in crossed cerebellar diaschisis 16 ; and Yoshikawa et al 17 reported a child with SWS in whom there was a reduction in the cerebral blood flow and metabolism in the cerebral cortex underlying the angioma and in the contralateral cerebellum. However, to our knowledge, folial pial enhancement has not been described.…”

Section: Discussionmentioning

confidence: 99%

“…Clinically, the patient had increasing head circumference from infancy, plateauing at 4 years of age, and right glaucoma. MR images obtained at 6,16, and 45 months demonstrated fine vessels within the subarachnoid spaces bilaterally, progressive macrocrania, and enlargement of the right globe. MR venography used to supplement the final study confirmed patency of the dural venous sinuses and deep venous system with no clear abnormality of the superficial cortical venous system.…”

Section: Sws Without Pial Enhancementmentioning

confidence: 96%

A Spectrum of Unusual Neuroimaging Findings in Patients with Suspected Sturge-Weber Syndrome

Adams¹,

Aylett²,

Squier³

et al. 2008

AJNR Am J Neuroradiol

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Crossed cerebellar diaschisis and crossed cerebellar atrophy: correlation of MR findings, clinical symptoms, and supratentorial diseases in 26 patients.

Cited by 131 publications

References 0 publications

Significance of Cerebellar Atrophy in Intractable Temporal Lobe Epilepsy: A Quantitative MRI Study

Significance of Cerebellar Atrophy in Intractable Temporal Lobe Epilepsy: A Quantitative MRI Study

Confounding Imaging Findings in Subacute-Chronic Cerebral Infarction

A Spectrum of Unusual Neuroimaging Findings in Patients with Suspected Sturge-Weber Syndrome

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