(22,23). A few studies of the qualitative nature of the urinary steroids in patients with this type of tumor seem to confirm such a conclusion (13,24). Accordingly, when the opportunity arose to study a patient bearing a testicular -tumor thought to be of this type, it seemed worthwhile to attempt to establish the exact nature of the steroids produced. The study presented here was therefore undertaken.This paper presents a description of the patient, histological observations on the tumor, the results of urinary steroid assays and the results of experiments in which slices of the tumor were incubated with C14-labeled steroid precursors. EXPERIMENTAL AND RESULTS

No abstract