Open AccessImaging of Creutzfeldt-Jakob Disease: Imaging Patterns and Their Differential Diagnosis
Author(s) -
Diego Cardoso Fragoso,
Augusto Lio da Mota Gonçalves Filho,
Felipe Torres Pacheco,
Bernardo Rodi Barros,
Ingrid Aguiar Littig,
Renato Hoffmann Nunes,
Antônio Carlos Martins Maia Júnior,
Antônio José da Rocha
Publication year - 2017
Publication title -
radiographics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.866
H-Index - 172
eISSN - 1527-1323
pISSN - 0271-5333
DOI - 10.1148/rg.2017160075
Subject(s) - medicine , neuroimaging , differential diagnosis , magnetic resonance imaging , disease , medical diagnosis , diffusion mri , pathology , clinical imaging , radiology , psychiatry
Diagnosis of sporadic Creutzfeldt-Jakob disease (sCJD) remains a challenge because of the large variability of the clinical scenario, especially in its early stages, which may mimic several reversible or treatable disorders. The molecular basis of prion disease, as well as its brain propagation and the pathogenesis of the illness, have become better understood in recent decades. Several reports have listed recognizable clinical features and paraclinical tests to supplement the replicable diagnostic criteria in vivo. Nevertheless, we lack specific data about the differential diagnosis of CJD at imaging, mainly regarding those disorders evolving with similar clinical features (mimicking disorders). This review provides an update on the neuroimaging patterns of sCJD, emphasizing the relevance of magnetic resonance (MR) imaging, summarizing the clinical scenario and molecular basis of the disease, and highlighting clinical, genetic, and imaging correlations in different subtypes of prion diseases. A long list of differential diagnoses produces a comprehensive pictorial review, with the aim of enabling radiologists to identify typical and atypical patterns of sCJD. This review reinforces distinguishable imaging findings and confirms diffusion-weighted imaging (DWI) features as pivotal in the diagnostic workup of sCJD, as these findings enable radiologists to reliably recognize this rare but invariably lethal disease. A probable diagnosis is justified when expected MR imaging patterns are demonstrated and CJD-mimicking disorders are confidently ruled out. © RSNA, 2017.