Ethmoidal meningioma revealed by transient global amnesia

Cattaino, G; Pomes, A.; Querin, F.; Cecotto, C

doi:10.1007/bf02333617

Cited by 10 publications

(6 citation statements)

References 25 publications

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“…The findings, including the current case, amounted to 20 examples (table 2) [6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23]. This has extended the previous narrative reviews of TGA and tumour by Dinca et al [23] and Daniel [24].…”

Section: Case Reportsupporting

confidence: 76%

“…Many of the reports [7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19] predated widely accepted clinical diagnostic criteria for TGA [4], and for this reason, some cases might be excluded as not conforming to criteria. For example, in one case, the amnesic episode lasted more than 24 h [7], and in another, progressive memory problems followed a generalised tonic clonic seizure [11]; in yet another case, the patient was reported to have 6 episodes of TGA and on examination had bilateral papilloedema [16] (criticised as unlikely to be TGA by Hodges [29]).…”

Section: Case Reportmentioning

confidence: 99%

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Transient Global Amnesia and Brain Tumour: Chance Concurrence or Aetiological Association Case Report and Systematic Literature Review

Milburn-McNulty

Larner

2015

Case Rep Neurol

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We report a patient presenting with episodes of transient amnesia, some with features suggestive of transient global amnesia (TGA), and some more reminiscent of transient epileptic amnesia. Investigation with neuroimaging revealed an intrinsic lesion in the right amygdala, with features suggestive of low-grade neoplasia. We undertook a systematic review of the literature on TGA and brain tumour. Fewer than 20 cases were identified, some of which did not conform to the clinical diagnostic criteria for TGA. Hence, the concurrence of brain tumour and TGA is very rare and of doubtful aetiological relevance. In some brain tumour-associated cases, epilepsy may be masquerading as TGA.

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Section: Case Reportsupporting

confidence: 76%

Section: Case Reportmentioning

confidence: 99%

Transient Global Amnesia and Brain Tumour: Chance Concurrence or Aetiological Association Case Report and Systematic Literature Review

Milburn-McNulty

Larner

2015

Case Rep Neurol

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“…The presence of a hippocampal lesion allows the condition to be diagnosed with confidence, but in patients without discernible hippocampal lesions, a different etiology leading to the amnestic syndrome cannot be ruled out. It should also be acknowledged that TGA could be determined by the reported brain lesions other than hippocampal high signal intensities [25,26,27,28,29]. Agosti et al [30] suggested that TGA should be classified as ‘primary TGA’ or ‘TGA with structural brain lesions’, but the cited authors reported that both subtypes had comparable clinical features and were clinically indistinguishable.…”

Section: Discussionmentioning

confidence: 99%

Transient Global Amnesia: Seven Years of Experience with Diffusion-Weighted Imaging in an Emergency Department

Ahn¹,

Kim²,

Lee³

et al. 2011

Eur Neurol

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Background/Aims: Hippocampal lesions on diffusion-weighted imaging (DWI) are commonly described in transient global amnesia (TGA). We evaluated the utility of DWI and the presence of hippocampal lesions in the diagnosis of TGA. Methods: A total of 203 TGA episodes were diagnosed at our emergency department from January 2003 to May 2010. DWI (5-mm slice thickness) was performed using a 1.5 T scanner. Patients were divided into 2 groups based on the presence of hippocampal lesions on DWI: DWI– and DWI+. The clinical characteristics and the time interval from development of amnesia to magnetic resonance imaging (MRI) were compared. Results: 16 patients had hippocampal lesions on DWI. The DWI– and DWI+ groups had similar clinical characteristics. The overall median time interval from amnesia to MRI was 6 h, and this interval was significantly longer for the DWI+ group than the DWI– group [9 h (IQR 6.5–25) vs. 5 h (IQR 4–9), p = 0.002]. Conclusion: DWI has a low diagnostic yield when performed early in the course of TGA. Positive findings can confirm the diagnosis, but in negative results, careful interpretation is required, including the time interval from amnesia to MRI.

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“…Any cognitive disability seems to be more likely with attention and spatial abilities and with multiple-episode patients. Of course, without a pre-TGA memory evaluation, one cannot rule out TGA as a symptom of a preexisting subclinical memory impairment (Cattaino, Pomes, Querin, & Cecotto, 1989). Although there are sufficient indications of a permanent memory dysfunction in some TGA patients (i.e., those with multiple episodes), a definitive answer awaits further investigation.…”

Section: Number Of Patients 16 R ------------------------------mentioning

confidence: 99%

Transient global amnesia

Brown

1998

Psychonomic Bulletin & Review

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Transient global amnesia (TGA) is a memory dysfunction characterized by a sudden onset of dense anterograde amnesia (AA)that gradually resolves across several hours. TGAis typically accompanied by repeated questions (concerning present circumstances) with retrograde amnesia for events preceding the attack, and it usually strikes individuals in their late 50s and early 60s. The etiology of TGA remains unclear, although it probably reflects a temporary disruption of the blood supply to the temporallobe. The physical and psychological events preceding the attack are diverse, but they often include acute emotional and physical stressors. TGA appears to be benign, with low risk for recurrence or residual complications. While systematic memory research on TGApatients is rare, these individuals present a unique opportunity to study amnestic behaviors in otherwise normal individuals. A guide to conducting future research is provided. 401Over the last 4 decades, a considerable literature has accumulated concerning transient global amnesia (TGA). Originally described by Hague (1954; see Haas, 1983), the term TGA was coined by Fisher and Adams (1958) to describe a reversible, short-term (several hour) inability to store and/or retrieve new information most commonly observed in older adults (50-70 years old). Its onset is sudden, and its resolution is gradual. A period of retrograde amnesia (RA) is usually observed, the duration of which is highly variable (hours to years) across individuals and shrinks during the recovery period. TGA victims often ask the same question(s) repeatedly and are generally confused regarding time, place, and circumstances. Despite the inability to retain new information, general intellectual function (reading, writing, speaking, calculation) and selfidentity are preserved, and obvious neurological abnormalities are absent. Oddly, most TGA victims experience only one episode in a lifetime. TGA appears to be unassociated with any obvious physical or psychological disease process or residual disability, contrasting with other memory maladies, such as Alzheimer's dementia, Korsakoff's disease, drug addiction, or hysterical fugue states (Markowitsch, 1995).The primary purpose ofthe present review is to acquaint behavioral researchers with a common malady that is relatively unknown among psychology professionals. Despite a large literature on TGA, the phenomenon is poorly understood, and no consensus has emerged on its psychological or physiological cause. The present literature summary will hopefully allow cognitive, clinical, and healthThe author wishes to extend special thanks to Billie Stovall in the Interlibrary Loan Office of Southern Methodist University for her herculean efforts in procuring hundreds of articles from medical journals at other universities.

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Ethmoidal meningioma revealed by transient global amnesia

Cited by 10 publications

References 25 publications

Transient Global Amnesia and Brain Tumour: Chance Concurrence or Aetiological Association Case Report and Systematic Literature Review

Transient Global Amnesia and Brain Tumour: Chance Concurrence or Aetiological Association Case Report and Systematic Literature Review

Transient Global Amnesia: Seven Years of Experience with Diffusion-Weighted Imaging in an Emergency Department

Transient global amnesia

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