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
cervical spine MRI T1-weighted osseous mass isointense signal at C1 vertebra cephalad
cervical spine mri t1-weighted osseous mass isointense signal at c1 vertebra cephalad