magnetic resonance imaging of cervical spine: mass of posterior aspect of C1 vertebra with hypointense signal intensity (S/I) ratio
magnetic resonance imaging of cervical spine: mass of posterior aspect of c1 vertebra with hypointense signal intensity (s/i) ratio
MRI cervical osseous mass S/I ratio hypointense C1 posterior
mri cervical osseous mass s/i ratio hypointense c1 posterior