FIG. 1.

A: Preoperative sagittal postcontrast 3D T1-MPRAGE MRI demonstrating a new 1.1 × 0.7 cm distal recurrence at the roof of the anterior third ventricle abutting the foramen of Monro without concurrent ventricular enlargement. B: Anatomically labeled view into the foramen of Monro using a 30-degree angled endoscopic lens. The patient’s CPC is shown in contrast to normal choroid plexus, displaying its hypervascular and multilobulated nature as well as its attachment at the roof of the third ventricle. C: Postoperative postcontrast T1-weighted MRI revealed the absence of nodular enhancement, suggesting GTR without residual tumor. v. = vein.