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Report of diffusion-weighted MRI in two cases with different cerebral hydatid disease
1Ege University, Faculty of Medicine, Department of Radiology, Bornova, Izmir, Turkey. okitis@med.ege.edu.tr
Purpose:
To present MRI findings in two cases of cerebral hydatid disease with an emphasis on diffusion-weighted imaging (DWI) findings of Echinococcus granulosus (EG) versus Echinococcus alveolaris (EA).
Results:
EG lesions were isointense with cerebrospinal fluid in all sequences including DWI. On DWI, EA lesions remained hypointense on b = 1000 s/mm2 diffusion-weighted images. Apparent diffusion coefficient (ADC) values of EG and EA lesions were completely different from each other, 2.88 +/- 0.24 x 10(-3) s/mm2 and 1.33 +/- 0.15 x 10(-3) s/mm2, respectively.
Conclusion:
The ADC values could not be used to discriminate from other differential diagnoses.
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