title: Signet-ring cell adenocarcinoma of rectum: a histological, histochemical and electron microscopic study.
abstract: A signet-ring cell adenocarcinoma of rectum removed from a 71-year-old woman was examined by light and electron microscopy. Most of the mucin in the signet-ring cells was of the neutral type, although acidic, mostly non-sulphated, mucin was also present. Three other types of neoplastic cells. The similarities between this tumour and tumours described in the stomach, appendix and breast care discussed.
mesh_terms: D002288:Adenocarcinoma, Mucinous / Q000378:metabolism / Q000648:ultrastructure*; D000368:Aged; D002454:Cell Differentiation; D004759:Enterochromaffin Cells / Q000648:ultrastructure; D005260:Female; D006651:Histocytochemistry; D006801:Humans; D008854:Microscopy, Electron; D009077:Mucins / Q000378:metabolism; D012004:Rectal Neoplasms / Q000378:metabolism / Q000556:secondary / Q000648:ultrastructure*
chemical_list: D009077:Mucins