RT Journal Article SR Electronic T1 Oestrogen receptors in colorectal carcinoma. JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 149 OP 151 DO 10.1136/jcp.43.2.149 VO 43 IS 2 A1 P M Dawson A1 S Shousha A1 S D Blair A1 G D Carter A1 J Jones A1 J Alaghband-Zadeh A1 N A Theodorou YR 1990 UL http://jcp.bmj.com/content/43/2/149.abstract AB The oestrogen receptor content of colorectal adenocarcinoma was investigated using an established ligand binding biochemical assay and two more recently introduced techniques using specific monoclonal antibodies (Abbott ER-EIA and ER-ICA assay kits). Twenty nine tumours were investigated by the ligand binding assay. Only one (3.4%) tumour gave a weakly positive result (11 fmol/mg cytosol protein); the rest were all negative. Where sufficient tissue was available, the receptors were also determined by a quantitative immunoassay in 18 patients and an immunohistochemical method in 13 patients. The results were similarly all negative. It is concluded that most colorectal carcinomas, irrespective of sex, are oestrogen receptor negative, and it is thus unlikely that hormonal manipulation would have an influence on the course of the disease.