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Figure 1: An 83 year old female. (a) Sagittal T2WI showing a homogenous iso to hyperintense mass lesion in left cervico-thoracic junction indenting left lung apex and altered signal intensity of 1st rib (solid white arrow). (b) Coronal STIR showing a hyperintense mass in left cervico-thoracic junction encasing left brachial plexus. (c) Axial T2 WI at C7-D1 disc level showing extradural extension of the mass via left C7-D1 foramen. (d) Coronal CT showing lytic lesion in proximal part of left 1st rib with perpendicular periosteal reaction (solid white arrow)

Figure 1: An 83 year old female. (a) Sagittal T2WI showing a homogenous iso to hyperintense mass lesion in left cervico-thoracic junction indenting left lung apex and altered signal intensity of 1<sup>st</sup> rib (solid white arrow). (b) Coronal STIR showing a hyperintense mass in left cervico-thoracic junction encasing left brachial plexus. (c) Axial T2 WI at C7-D1 disc level showing extradural extension of the mass via left C7-D1 foramen. (d) Coronal CT showing lytic lesion in proximal part of left 1<sup>st</sup> rib with perpendicular periosteal reaction (solid white arrow)