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Yıl:2019; Cilt: 56; Sayı: 3>> Özet
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Nöropsikiyatri Arşivi; 2019;56(3):226-228
Creutzfeldt Jacob Hastalığında Tek Başlangıç Görüntüleme Bulgusu: Fokal FDG-PETHipometabolizması
AK Kılıç, B Kaymakamzade, E Saka, E Tan
Hacettepe University, Ankara
Creutzfeldt-Jacob hastalığı (CJH) tanısının konmasında elektroensefalografi, beyin omurilik sıvısı değerlendirmesi ve difüzyon ağırlıklı, manyetik rezonans görüntüleme (MRG) değerlidir. Ancak, laboratuvar çalışmaları hastalığın çok erken dönemindeki karakteristik bulguları göstermeyebilir. Burada, başlangıçta atipik bir nörolojik prezantasyon gösteren ve bu dönemde görüntüleme bulgusu olarak sadece fokal paryetal 2-(18F) fluorodeoksiglukoz (FDG) pozitron emisyon tomografi (PET) hipometabolizması saptanan bir vakayı sunmaktayız. Hasta, takipte hızlı bir şekilde kötüleşmiş ve CJH’nin tipik nörolojik bulgularını göstermiştir. Çekilen FDG-PET’in tetkikinden iki hafta sonra yapılan beyin MRG’de, sonunda difüzyon ağırlıklı görüntülerde kaudat nucleus, putamen ve özellikle sol pariyetal bölgede olmak üzere serebral kortekste artmış sinyal izlenmiştir. CJH şüphesi olan ve beyin MRG’si normal olan hastalara erken dönemde beyindeki fonksiyonel değişiklikleri gösteren görüntüleme yöntemlerinin yapılması, kritik ipuçları vermesi açısından önem taşımaktadır. Difüzyon ağırlıklı sekansları tekrar etmek de faydalı bir tanısal yaklaşım olabilir
The Sole Initial Imaging Finding in Creutzfeldt-Jacob Disease: Focal FDG-PETHypometabolism
Laboratory studies such as electroencephalography, cerebrospinal fluid examination and diffusion-weighted magnetic resonance imaging (DWIMRI) are valuable in the diagnosis of Creutzfeldt-Jacob disease (CJD), . However, these laboratory studies may not show the characteristic findings in the very early stage of the disease. Here, we present a case of CJD who had atypical neurologic presentation initially and had only a focal parietal 2-(18F) fluorodeoxyglucose (FDG) positron emission tomography (PET) hypometabolism as the sole imaging abnormality at the beginning. The patient progressed rapidly, and showed typical neurological findings for CJD. The brain MRI was performed two weeks after the FDG-PET study, finally demonstrated increased signal intensity in DWI in caudat nucleus, putamen, and cerebral cortex, especially on left parietal region. Imaging methods demonstrating functional alterations in the brain should be obtained in the early period in patients with normal MRI suspected having CJD. Repeating DWI could also be an effective diagnostic approach

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