PMC6352630_01
(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
IJNM-34-51-g001.jpg
PMC6352630_01_IJNM-34-51-g001.jpg
F1
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].
(d-f) Represent coronal computed tomography, positron emission tomography, and fused positron emission tomography/computed tomography images, respectively
IJNM-34-51-g002.jpg
PMC6352630_01_IJNM-34-51-g002.jpg
F2
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].
Histopathology of the lesion showing areas of laminated keratin with no foci of calcification or hemorrhage, confirming benign epidermoid cyst
IJNM-34-51-g003.jpg
PMC6352630_01_IJNM-34-51-g003.jpg
F3
Histopathology of cystic lesion revealed areas of laminated keratin with no foci of calcification or hemorrhage, confirming benign epidermoid cyst [Figure 3].