Abstract
The purpose of this study was to evaluate the serum tumor markers CYFRA 21-1 and squamous-cell carcinoma antigen (SCC) in the follow-up of squamous-cell cervical cancer patients. One hundred-ninety-three serum samples, which were collected pretherapeutically and during follow-up of 30 patients suffering from squamous-cell cervical cancer FIGO stage III, were analyzed for SCC and CYFRA 21-1. Cutoff values for SCC and CYFRA 21-1 were 3 and 3.3 micrograms/liter, respectively. Fifteen cases were keratinizing and 15 nonkeratinizing squamous-cell carcinomas. Serum tumor marker results were correlated to the results of the clinical and radiologic examinations. We calculated sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of serum SCC and serum CYFRA 21-1 for the whole study group and separately for the keratinizing and nonkeratinizing squamous-cell carcinoma group. Sensitivity, specificity, PPV, and NPV of serum SCC were 66, 91, 93, and 60%, respectively. Serum CYFRA 21-1 showed a sensitivity of 63%, specificity of 96%, PPV of 96%, and NPV of 59%. The combination of SCC and CYFRA 21-1 increased the sensitivity to 78%, with a specificity, PPV, and NPV of 87, 91, and 69%, respectively. In k...Continue Reading
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