case_images: PMC6352630_01
case_images: (a-c) A nonfluorodeoxyglucose avid well-circumscribed hypodense lesion in the left frontal bone measuring 2.3 cm x 3.0 cm causing destruction of inner table of left frontal bone and extending intracranially. (a-c) represent axial computed tomography, positron emission tomography, and fused positron emission tomography/computed tomography images respectively
case_images: IJNM-34-51-g001.jpg
case_images: PMC6352630_01_IJNM-34-51-g001.jpg
case_images: F1
case_images: The lesion is causing the destruction of inner table of left frontal bone and extending intracranially with tumor to gray matter ratio (TGR) of 0.3, suggestive of intradiploic epidermoid [Figures 1 and 2].
case_images: (d-f) Represent coronal computed tomography, positron emission tomography, and fused positron emission tomography/computed tomography images, respectively
case_images: IJNM-34-51-g002.jpg
case_images: PMC6352630_01_IJNM-34-51-g002.jpg
case_images: F2
case_images: The lesion is causing the destruction of inner table of left frontal bone and extending intracranially with tumor to gray matter ratio (TGR) of 0.3, suggestive of intradiploic epidermoid [Figures 1 and 2].
case_images: Histopathology of the lesion showing areas of laminated keratin with no foci of calcification or hemorrhage, confirming benign epidermoid cyst
case_images: IJNM-34-51-g003.jpg
case_images: PMC6352630_01_IJNM-34-51-g003.jpg
case_images: F3
case_images: Histopathology of cystic lesion revealed areas of laminated keratin with no foci of calcification or hemorrhage, confirming benign epidermoid cyst [Figure 3].