title: Cytokeratin immunohistochemical study of epithelial cysts in the central nervous system: with special reference to origins of colloid cyst of the third ventricle and Rathke's cleft cyst in the sella.
abstract: A variety of epithelial cysts in the central nervous system were examined immunohistochemically for expression of cytokeratins. Colloid cysts, Rathke's cleft cysts and epithelial cysts in the spinal canal expressed complex type cytokeratins, while enterogenous cysts and neuroectodermal cysts showed only simple type cytokeratins. Colloid cysts showed a pattern of cytokeratins similar to that of upper respiratory tract which is endodermal in origin. In contrast, Rathke's cleft cysts showed a pattern of cytokeratins similar to that of the adenohypophysis and salivary gland which are ectodermal in origin. The CK immunohistochemical studies are discussed with regards to diagnostic significance and origins of their cysts.
authors.affiliation: Department of Neurological Surgery, Wakayama Medical College.
authors.forename: Y
authors.initials: Y
authors.lastname: Uematsu
authors.forename: N
authors.initials: N
authors.lastname: Komai
authors.forename: A
authors.initials: A
authors.lastname: Hirano
authors.forename: M
authors.initials: M
authors.lastname: Shimizu
authors.forename: Y
authors.initials: Y
authors.lastname: Tanaka
authors.forename: D
authors.initials: D
authors.lastname: Naka
authors.forename: S
authors.initials: S
authors.lastname: Yukawa
authors.forename: T
authors.initials: T
authors.lastname: Itakura
authors.forename: S
authors.initials: S
authors.lastname: Hayashi
mesh_terms: D000328:Adult; D002493:Central Nervous System Diseases / Q000378:metabolism*; D002552:Cerebral Ventricles; D002675:Child, Preschool; D003388:Cranial Fossa, Posterior; D003397:Craniopharyngioma / Q000378:metabolism*; D003560:Cysts / Q000378:metabolism*; D005315:Fetal Diseases / Q000378:metabolism; D006801:Humans; D007150:Immunohistochemistry; D007633:Keratins / Q000378:metabolism*; D010911:Pituitary Neoplasms / Q000378:metabolism*; D012016:Reference Values; D012658:Sella Turcica; D013115:Spinal Canal
chemical_list: D007633:Keratins