Figures
Figure 1. Preoperative non-enhanced axial (a), coronal (b) and enhanced axial (c, d) MRI scans demonstrate a large tumor of ovoid shape inside the left temporal horn with homogenous enhancement and peritumoral edema.
Figure 2. Preoperative angiogram reveals significant tumor vascularity (red arrow).
Figure 3. Head position and the skin incision for the pterional-transsylvian approach.
Figure 4. (a) The sylvian fissure is split to identify the inferior insular sulcus. The inferior insular sulcus was mapped with dotted white lines. (b) The temporal horn is reached by dissecting the bottom of the inferior circular sulcus of the insula. IL: insula lumen; STG: superior temporal gyrus; MTG: middle temporal gyrus; ITG: inferior temporal gyrus.
Figure 5. Photomicrograph showing malignant lymphoid infiltrate with perivascular lesion (hematoxylin and eosin, original magnification, × 400).
Figure 6. Postoperative enhanced MRI in axial (a, b) views 3 months after operation and chemotherapy shows the absence of tumor.