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Corresponding to the site of clinical complaint at the mid-posterior parietal region, there is an osteolytic destructive bony lesion associated with extraosseous intra & extracranial soft tissue components. Other mixed lytic and sclerotic bony lesions are scattered in the skull bones.
Two other incidental findings are noted:
symmetrical thickening of the inner skull vault at both frontal regions in keeping with hyperostosis frontalis interna
a small well-defined partially calcified scalp mass at the mid-frontal region in keeping with proliferating trichilemmal cyst
No intracerebral SOLs can be detected.