magnetic resonance imaging of thoracic spine: 'bone within a bone' appearance of T4 vertebra
magnetic resonance imaging of thoracic spine: 'bone within a bone' appearance of t4 vertebra
magnetic resonance imaging of thoracic spine: 'bone within a bone' appearance of T4 vertebra (procedure)
magnetic resonance imaging of thoracic spine: 'bone within a bone' appearance of t4 vertebra (procedure)