Multiple myeloma affecting the skull base
70 year old male. Fall and head strike. Exclude intracranial haemorrhage.
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There is a soft tissue mass arising from the marrow of the clivus with cortical expansion and destruction. No local infiltration observed at this stage. A further osteolytic soft tissue mass is present at the right transverse process of C2.
Typical location for myelomatous lesion in the skull base include Clivus, petrous apex, occipital condyle, greater wing of sphenoid with additional lytic foci of calvaria & facial bones.