magnetic resonance imaging of cervical spine: cephalad mass of C1 vertebra with hyperintense T2 signal
magnetic resonance imaging of cervical spine: cephalad mass of c1 vertebra with hyperintense t2 signal
C-spine MRI T1-weighted osseous mass hyperintense signal at C1 vertebra cephalad
c-spine mri t1-weighted osseous mass hyperintense signal at c1 vertebra cephalad