Fig. 2
From: Diagnosis of cervical plexus tumours by high-frequency ultrasonography
MRI, CT and contrast ultrasound images of cervical plexus schwannomas (C3 level). A 2D ultrasonography of the transverse process of the vertebra, where M is the neuroma lesion originating from the intervertebral foramen. B Colour Doppler ultrasonography showing the blood flow signal in the mass. C Contrast-enhanced ultrasound showing rich blood perfusion. D, E MRI sagittal and cross-sections of a CP mass: the arrow indicates the lesion growing outwards from the intervertebral foramen. F The arrow indicates the enlarged intervertebral foramen (3D CT reconstruction)