Figure 6
From: Diverse arachnoid cyst morphology indicates different pathophysiological origins

Aberrant-type cyst, SEM images. On luminal aspect (a) isolated ciliated cells were observed, here a microvillus-rich cells with a central tuft of cilia is surrounded by a profile-poor flat luminal epithelium. The dural surface (b) displayed numerous fine-edged openings (arrows) formed by cellular extensions and connections.