case_images: PMC4804070_01
case_images: Image showing the extent of lesion and the planned surgical incision mark.
case_images: CRINM2016-2096701.001.jpg
case_images: PMC4804070_01_CRINM2016-2096701.001.jpg
case_images: fig1
case_images: Examination revealed a bony and sessile swelling on the right suboccipital region and extending below the craniovertebral junction (Figure 1).
case_images: CT bone window showing the large lesion in the right suboccipital and adjacent mastoid region.
case_images: CRINM2016-2096701.002.jpg
case_images: PMC4804070_01_CRINM2016-2096701.002.jpg
case_images: fig2
case_images: 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).
case_images: Intraoperative picture outlining the lesion.
case_images: CRINM2016-2096701.003.jpg
case_images: PMC4804070_01_CRINM2016-2096701.003.jpg
case_images: fig3
case_images: The lesion proved to be a bony sessile mass extending from the lambdoid suture superiorly to C1 arch inferiorly (Figure 3).
case_images: The excised bony lesion.
case_images: CRINM2016-2096701.004.jpg
case_images: PMC4804070_01_CRINM2016-2096701.004.jpg
case_images: fig4
case_images: The lesion was excised with the assist of a Gigli saw and later chiseled (Figure 4).
case_images: The calvarial base after excision of the bony tumor.
case_images: CRINM2016-2096701.005.jpg
case_images: PMC4804070_01_CRINM2016-2096701.005.jpg
case_images: fig5
case_images: The inner table of the bone beneath was intact (Figure 5).