Elevated serum inhibin and tumor-associated trypsin inhibitor concentrations in a young woman with dysgerminoma of the ovary.

We describe a patient with dysgerminoma who had elevated serum inhibin, tumor-associated trypsin inhibitor (TATI), and CA 125 concentrations, which increased progressively during follow-up of the advancing disease. Inhibin levels correlated closely with disease behavior. In contrast to inhibin, serum TATI and CA 125 failed to reveal the presence of silent disease.