Serum CA 125 (a marker of coelomic epithelial cells) and aminoterminal propeptide of type III procollagen (PIIINP; an indicator of collagen metabolism) concentrations were measured in 148 patients with endometrial carcinoma. An initial serum concentration of CA 125 was pathologic in 17% of the patients, the frequency of abnormal values being higher (P = 0… (More)