PMC3657435_01
Preoperative and postoperative images. (a) Preresection T1 axial MRI with contrast showing a temporal lesion with an estimated 5.0 cubic centimeter volume. (b) Immediate postresection T1 axial MRI with contrast showing a slight amount of residual enhancement at the anteromedial margin of the resection cavity. (Yellow arrow indicates residual tumor area not present in (c)). (c) The corresponding noncontrast enhanced T1 MRI image taken at the same time demonstrates that the posteromedial and lateral hyperintensities are in fact blood products and postoperative change rather than gross residual tumor. A 93.3% volumetric resection was achieved.
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fig1
An MRI scan revealed a left temporal lobe mass measuring 3.5 cm x 2 cm abutting the temporal horn of the lateral ventricle (Figure 1). Postoperative MRI scan demonstrated a 93.3% volumetric resection of the tumor, with minimal residual tumor noted in the anteroinferior margin of the tumor bed (Figure 1).
(a) View of the endoscopic port with dilator insertion and (b) surgical view through the endoscopic port.
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fig2
The tumor was cannulated through the middle temporal gyrus using a previously described method (Figure 2).