PMC3280002_01
Axial, coronal, and sagittal CT imaging showing a strong hypodense left parasellar region lesion (fat density) with no contrast enhancement or vasogenic edema
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F1
(a) Preoperative coronal T1-weighted MRI showing smooth contours and oval shape of the lesion and medial displacement of the intracavernous portion of the internal carotid artery without enhancement or narrowing. (b) Preoperative axial T2-weighted MRI showing a hyperintense lesion close to the left internal carotid artery with heterogeneous signal characteristics. (c) Preoperative axial T1-weighted MRI showing the same lesion with heterogeneous gadolinium enhancement
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F2
Figure 7 shows 2-month post-op MRI.
(a) Aspects of Sylvian approach with temporal lobe (TL) on the left and frontal lobe (FL) on the right, III nerve (III), and the lateral wall of the cavernous sinus (CS); (b) intracapsular hair fibers of the cyst; (c) interdural location and a point of attachment (AP) to the inner membranous layer of the lateral wall of the CS; (d) final view of the tumoral loca (Tloc)
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F3
Intense milky and greasy fluid was aspirated before numerous hair tufts were removed from the inner side of the firm, capsulated lesion [Figure 3].
Histopathologic examination showed stratified squamous epithelium and abundant sebaceous glands, characteristic features of dermoid tumors (H and E, x40)
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F4
Immediate post-op CT scan showing complete tumor removal
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F5
The postoperative period was uneventful [Figures 5 and 6].
No ocular nerve palsies were seen post-op
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F6
The postoperative period was uneventful [Figures 5 and 6].
2-month post-op MRI with no residual lesion
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F7
Figure 7 shows 2-month post-op MRI.