title: R-bodies of human rectal epithelial cells.
abstract: Distinctive globular bodies, ranging in diameter from 0.2mu to 1.5mu, were encountered in the cytoplasm of epithelial cells of human rectal mucosa. These profiles, surrounded by a unit membrane, contained a uniform population of electron-dense rods 50 nm wide and 100 to 250 nm long. Although neither the origin nor the relationships of these rod-containing bodies (R-bodies) to other cytoplasmic organelles could be established, morphologic and cytochemical studies demonstrated clear differences from multivesicular bodies.
mesh_terms: D004847:Epithelial Cells; D004848:Epithelium / Q000648:ultrastructure; D006801:Humans; D009940:Organoids / Q000648:ultrastructure*; D011349:Proctitis / Q000473:pathology; D012007:Rectum / Q000648:ultrastructure*