CASE 1 1. What should be included in the differential diagnosis? (Choose all that apply.) a. Tarlov cyst c. Chordoma d. Ependymoma 2. What are the typical signal characteristics of a Tarlov cyst on MRI? a. Hyperintense on T1-weighted images and hyperintense on T2-weighted images b. Hypointense on T1-weighted images and hypointense on T2-weighted images c. Hyperintense on T1-weighted images and hypointense on T2-weighted images d. Hypointense on T1-weighted images and hyperintense on T2-weighted images 3. Which of the following sequences would be used to differentiate a Tarlov cyst from a cystic schwannoma? a. T1-weighted b. T1-weighted with contrast agent administration c. T2-weighted d. Short tau inversion recovery (STIR) 4. Tarlov cyst is classified as which type of meningeal cyst? a. Type IA b. Type IB
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