FIGURE 2. The slides of thin sections of the region, which have been occluded for 7 days, are observed under an optical microscope (×100) (A) and a surgical microscope (×13) (B). Note that there is no difference between the wall structure of the 3 differently occluded shunt catheters and that of a normal shunt catheter. N: none occluded, C: clipped, B: bulldog clamped, T: tied.
