PMC4804070_01
Image showing the extent of lesion and the planned surgical incision mark.
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Examination revealed a bony and sessile swelling on the right suboccipital region and extending below the craniovertebral junction (Figure 1).
CT bone window showing the large lesion in the right suboccipital and adjacent mastoid region.
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CT scan revealed a hyperostotic spherical lesion measuring 6 x 5 cm2 within the right suboccipital region highly suggestive of a giant osteoma (Figure 2).
Intraoperative picture outlining the lesion.
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The lesion proved to be a bony sessile mass extending from the lambdoid suture superiorly to C1 arch inferiorly (Figure 3).
The excised bony lesion.
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The lesion was excised with the assist of a Gigli saw and later chiseled (Figure 4).
The calvarial base after excision of the bony tumor.
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The inner table of the bone beneath was intact (Figure 5).