magnetic resonance imaging of cervical spine: cephalad mass of C1 vertebra with isointense T2 signal
magnetic resonance imaging of cervical spine: cephalad mass of c1 vertebra with isointense t2 signal
magnetic resonance imaging of cervical spine: cephalad mass of C1 vertebra with isointense T2 signal (procedure)
magnetic resonance imaging of cervical spine: cephalad mass of c1 vertebra with isointense t2 signal (procedure)