PMC9619326_01
CT thorax abdomen and pelvis showing colorectal malignancy with metastases to liver, lung and third rib:mass measuring 9 cm in maximum diameter with retroperitoneal soft tissue extension invading IVC, Psoas muscle and Gerota's fascia.
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MRI head with contrast showing left-sided cavernous sinus mass invading the left orbital apex in contact with the optic nerve.
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MRI head performed and it showed left cavernous sinus mass extending into left orbital apex in contact with the optic nerve with some degree of proptosis (Fig. 2) and another one arising from the right lateral mass of C1 with lateral compression of right jugular vein (Fig. 3)