OBJECTIVE: Creutzfeldt-Jakob disease is a rare dementing illness that usually affects older adults. Currently, neuroradiologic examinations play a minor role in the diagnosis of Creutzfeldt-Jakob disease. Several single case reports have noted a distinctive finding of hyperintense signal abnormalities in the basal ganglia on T2-weighted MR images of patients with Creutzfeldt-Jakob disease. In order to assess the diagnostic utility of this finding, we studied the imaging features of four patients with Creutzfeldt-Jakob disease in whom this MR finding was present. MATERIALS AND METHODS: Two neuroradiologists retrospectively reviewed the MR images of four patients who had pathologically proved Creutzfeldt-Jakob disease and signal abnormalities in the basal ganglia on T2-weighted MR images. The patients' clinical findings were also analyzed. RESULTS: The four patients had MR examinations between 6 months and 1 year after the onset of symptoms. In all four cases, the hyperintense signal abnormalities in the basal ganglia on T2-weighted images were diffuse and bilaterally symmetric. The T1-weighted images were normal. A CT scan was obtained on a single patient and was normal. CONCLUSION: Although a lack of signal abnormality in the basal ganglia on MR imaging cannot be used to rule out a diagnosis of Creutzfeldt-Jakob disease, our experience and review of published reports suggest that in the proper clinical setting, bilaterally symmetric, diffuse hyperintense abnormalities in the basal ganglia on T2-weighted images may be a specific sign of Creutzfeldt-Jakob disease.
OBJECTIVE: Creutzfeldt-Jakob disease is a rare dementing illness that usually affects older adults. Currently, neuroradiologic examinations play a minor role in the diagnosis of Creutzfeldt-Jakob disease. Several single case reports have noted a distinctive finding of hyperintense signal abnormalities in the basal ganglia on T2-weighted MR images of patients with Creutzfeldt-Jakob disease. In order to assess the diagnostic utility of this finding, we studied the imaging features of four patients with Creutzfeldt-Jakob disease in whom this MR finding was present. MATERIALS AND METHODS: Two neuroradiologists retrospectively reviewed the MR images of four patients who had pathologically proved Creutzfeldt-Jakob disease and signal abnormalities in the basal ganglia on T2-weighted MR images. The patients' clinical findings were also analyzed. RESULTS: The four patients had MR examinations between 6 months and 1 year after the onset of symptoms. In all four cases, the hyperintense signal abnormalities in the basal ganglia on T2-weighted images were diffuse and bilaterally symmetric. The T1-weighted images were normal. A CT scan was obtained on a single patient and was normal. CONCLUSION: Although a lack of signal abnormality in the basal ganglia on MR imaging cannot be used to rule out a diagnosis of Creutzfeldt-Jakob disease, our experience and review of published reports suggest that in the proper clinical setting, bilaterally symmetric, diffuse hyperintense abnormalities in the basal ganglia on T2-weighted images may be a specific sign of Creutzfeldt-Jakob disease.
Authors: Lloyd Einsiedel; Evelyn Kat; Janakan Ravindran; John Slavotinek; David L Gordon Journal: AJNR Am J Neuroradiol Date: 2003-08 Impact factor: 3.825
Authors: Geoffrey S Young; Michael D Geschwind; Nancy J Fischbein; Jennifer L Martindale; Roland G Henry; Songling Liu; Ying Lu; Stephen Wong; Hong Liu; Bruce L Miller; William P Dillon Journal: AJNR Am J Neuroradiol Date: 2005 Jun-Jul Impact factor: 3.825