[Course and stage control in testicular tumors using alpha 1-fetoprotein determination]

The serum AFP level of 52 patients with testicular tumours was measured using an ultra-micro-ELISA technique. The results confirm the importance of an uninterrupted observation of this marker in order to judge the course of the therapy of nonseminomatous testicular tumours. 85% of the patients with nonseminomatous testicular tumours showed positive values. AFP measurement is also important for staging. The assay used is precise, cheap and suitable for serial measurement.