magnetic resonance imaging of cervical spine: cephalad mass of C1 vertebra with hypointense T2 signal
magnetic resonance imaging of cervical spine: cephalad mass of c1 vertebra with hypointense t2 signal
magnetic resonance imaging of cervical spine: cephalad mass of C1 vertebra with hypointense T2 signal
magnetic resonance imaging of cervical spine: cephalad mass of c1 vertebra with hypointense t2 signal