title: CA125 serum levels and secondary laparotomy in epithelial ovarian tumours.
abstract: CA125 serum levels were assayed prior to 57 secondary laparotomies for ovarian epithelial tumours. Tumour was present in all 16 patients with an elevated level greater than 35 U/ml but the absence of tumour was incorrectly predicted in 15 of the 33 (45.5%) patients with CA125 levels less than 35 U/ml. For these patients the CA125 level was elevated in 14 of 20 (70%) with tumour greater than 1.5 cm, 1 of 7 (14.3%) with macroscopic tumour less than or equal to 1.5 cm and 1 of 4 (25%) with microscopic tumour. Tumour was resectable to less than or equal to 0.5 cm in 7 of 12 (58.3%) patients with CA125 less than 35 U/ml, 2 of 4 (50%) with CA125 in the range 35-100 U/ml and only 1 of 11 (9.1%) with CA125 greater than 100 U/ml (p less than .05). The CA125 level was elevated in 1 of 13 (7.7%) patients with less than 15 cm3 of tumour compared with 16 of 18 (88.9%) patients with 15 cm3 of tumour or more (p less than .0001). The correlation between the CA125 serum level and the tumour volume was almost statistically significant (r = +0.31, p = .053). The level of CA125 was normal in all 8 patients with mucinous tumours--4 of whom were found to have tumour at secondary surgery.(ABSTRACT TRUNCATED AT 250 WORDS)
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000951:Antigens, Neoplasm / Q000097:blood*; D015295:Antigens, Tumor-Associated, Carbohydrate; D014408:Biomarkers, Tumor / Q000097:blood*; D002277:Carcinoma / Q000097:blood / Q000473:pathology / Q000601:surgery*; D005260:Female; D006801:Humans; D008875:Middle Aged; D010051:Ovarian Neoplasms / Q000097:blood / Q000473:pathology / Q000601:surgery*; D012086:Reoperation
chemical_list: D000951:Antigens, Neoplasm; D015295:Antigens, Tumor-Associated, Carbohydrate; D014408:Biomarkers, Tumor