Reoperation as a Result of Raised Intracranial Pressure Associated with Cyst Formation in Tumor Cavity after Intracranial Tumor Resection: A Report of Two Cases
Figure 1
Imaging results for Case . (a) Contrast-enhanced MRI showing heterogeneous or ring-like enhancement in the temporal lobe. The elliptical area indicates the cortical incision, via which tumor resection was performed. (b) Axial T2WI showing the tumor resection zone. The cortical tissue located on the surface of the temporal lobe was not resected. (c) CT revealing cyst formation in the tumor resection cavity 3 days after tumor resection. The arrow indicates the position of the “valve”-like structure. (d) Relief of effusion in the tumor resection cavity following the reoperation. The arrow indicates the opening of the roof region of the tumor resection cavity and the disappearance of the “valve”-like structure. (e) Recommencement of effusion in the tumor resection cavity 5 days after the reoperation. The roof region of the tumor resection cavity was sealed again, indicating possible reformation of the “valve”-like structure. (f) Recommencement of effusion in the tumor cavity 1 week after the second reoperation removing the bone flap. (g) Disappearance of cyst formation in the tumor resection cavity 3 months after the second reoperation.
