Ciliary claws: their existence in various epithelial cysts of the central nervous system.

摘要: We describe claw-like projections and their issociated structures as encountered at the tips of cilia in a cerebellar epithelial cyst, an intraspinal bronchogenic cyst two colloid cysts third ventricle. Ciliary claws appear either single structure or cluster to five measuring 22–28 nm length 8–10 diameter, extending from plasma membrane ciliary tip. The transmembranous fibrils are bound multilayered electron-dense disc which is attached by distal ends axonemal microtubules. These observations suggest that common several types central nervous system; presence these supports premise corresponding epithelium endodermal origin.