magnetic resonance imaging of cervical spine: cephalad mass of C1 vertebra with hypointense signal intensity (S/I) ratio
magnetic resonance imaging of cervical spine: cephalad mass of c1 vertebra with hypointense signal intensity (s/i) ratio
magnetic resonance imaging of cervical spine: cephalad mass of C1 vertebra with hypointense signal intensity (S/I) ratio
magnetic resonance imaging of cervical spine: cephalad mass of c1 vertebra with hypointense signal intensity (s/i) ratio