TWO PATIENTS WITH TRANSIENT GLOBAL AMNESIA IN WHICH REPEATED DIFFUSION-WEIGHTED IMAGING REVEALED HIPPOCAMPAL HYPERINTENSITY: CASE REPORTS

Öz

An episode of temporary memory loss which is recovered within 24 hours is called transient global amnesia. The etiology and triggering factors are unclear but hippocampal lesions may contribute to this condition. Diffusion-weighted magnetic resonance imaging is used to detect these lesions. In this case report, two cases with transient global amnesia who had hippocampal lesions are presented.

Anahtar Kelimeler

• Transient global amnesia
• hippocampus
• diffusion weighted magnetic resonance image

TEKRARLANAN DİFÜZYON AĞIRLIKLI GÖRÜNTÜLEMEDE HİPOKAMPAL HİPERİNTENSİTE SAPTANAN İKİ GEÇİCİ GLOBAL AMNEZİ OLGUSU: OLGU SUNUMLARI

Öz

Geçici global amnezi, 24 saat içinde iyileşen geçici hafıza kaybı ataklarıdır. Etyolojisi ve tetikleyici faktörleri aydınlanmış değildir ancak hipokampal lezyonlar geçici global amneziye katkıda bulunabilir. Bu lezyonları saptamak için difüzyon ağırlıklı manyetik rezonans görüntüleme kullanılır. Bu olgu sunumunda hipokampal lezyonu olan geçici global amnezili iki olgu sunuldu.

Anahtar Kelimeler

• Geçici global amnezi
• hipokampus
• difüzyon ağırlıklı manyetik rezonans görüntüleme

Kaynakça

1. 1. Abreu Junior L, Godoy LL, Vaz LPS, Torres AE, Wolosker AMB, Torres US, et al. Optimization of magnetic resonance imaging protocol for the diagnosis of transient global amnesia. Radiol Bras 2019;52(3):161-5. [CrossRef] google scholar
2. 2. Sealy D, Tiller RJ, Johnson K. Transient Global Amnesia. Am Fam Physician 2022;105(1):50-4. google scholar
3. 3. Arena JE, Rabinstein AA. Transient global amnesia. Mayo Clin Proc 2015;90:264-72. [CrossRef] google scholar
4. 4. Hodges JR, Warlow CP. Syndromes of transient amnesia: towards a classification. A study of 153 cases. J Neurol Neurosurg Psychiatry 1990;53(10):834-43. [CrossRef] google scholar
5. 5. Spiegel DR, Smith J, Wade RR, Cherukuru N, Ursani A, Dobruskina Y, et al. Transient global amnesia: current perspectives. Neuropsychiatr Dis Treat 2017;13:2691-703. [CrossRef] google scholar
6. 6. Dölek T, Korkmaz M, Bek S, Kutlu G. Right Hippocampal Abnormality on diffusion-weighted MRI in transient global amnesia: case report. Turk J Neurol 2021;27:210-1. [CrossRef] google scholar
7. 7. Waliszewska-Prosol M, Nowakowska-Kotas M, Bladowska J, Papier P, Budrewicz S, Pokryszko-Dragan A. Transient global amnesia - risk factors and putative background. Neurol India 2020;68(3):624-9. [CrossRef] google scholar
8. 8. Liampas I, Siouras AS, Siokas V, Tsouris Z, Rikos D, Brotis A, et al. Migraine in transient global amnesia: a meta-analysis of observational studies. J Neurol 2022;269(1):184-96. [CrossRef] google scholar

9. 9. Wilson WA, Gharavi AE, Koike T, Lockshin MD, Branch DW, Piette JC, et al. International consensus statement on preliminary classification criteria for definite antiphospholipid syndrome: report of an international workshop. Arthritis Rheum 1999;42(7):1309-11. [CrossRef] google scholar
10. 10. Miyakis S, Lockshin MD, Atsumi T, Branch DW, Brey RL, Cervera R, et al. International consensus statement on an update of the classification criteria for definite antiphospholipid syndrome (APS). J Thromb Haemost 2006;4(2):295-306. [CrossRef] google scholar
11. 11. Tektonidou MG, Andreoli L, Limper M, Amoura Z, Cervera R, Costedoat-Chalumeau N, et al. EULAR recommendations for the management of antiphospholipid syndrome in adults. Ann Rheum Dis 2019;78(10):1296-304. [CrossRef] google scholar
12. 12. Lim SJ, Kim M, Suh CH, Kim SY, Shim WH, Kim SJ. Diagnostic yield of diffusion-weighted brain magnetic resonance imaging in patients with transient global amnesia: a systematic review and meta-analysis. Korean J Radiol 2021;22(10):1680-9. [CrossRef] google scholar