magnetic resonance imaging of cervical spine: cephalad mass of C1 vertebra with hyperintense T1 signal
magnetic resonance imaging of cervical spine: cephalad mass of c1 vertebra with hyperintense t1 signal
magnetic resonance imaging of cervical spine: cephalad mass of C1 vertebra with hyperintense T1 signal (procedure)
magnetic resonance imaging of cervical spine: cephalad mass of c1 vertebra with hyperintense t1 signal (procedure)