In a series of 181 patients with testicular germ cell tumors, the phenomenon of bilateral involvement of the testicles was observed nine times (5%). Two patients evidenced a simultaneous bilateral tumor, and, in seven others, a second tumor occurred after an interval ranging between 8 months and 6 years and 11 months. The incidence, histologic findings, therapy, and prognosis of bilateral testicular tumors are discussed on the basis of a survey of the literature. Emphasis is placed on the significance of a long-term follow-up period as well as on the important role of sonography in the early detection of a contralateral tumor.

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Five patients with prostatic carcinoma (stages T3N0M0) were injected intramuscularly with 300 mg of cyproterone acetate (CPA) (Androcur-Depot) at weekly intervals. The concentrations of CPA, testosterone, LH, FSH, and prolactin in plasma after the first, third, and fifth injection were measured by specific radioimmunoassays. After five injections of Androcur-Depot, CPA levels were slightly higher than in previous determinations, suggesting that a balance between active substance release from the depot and excretion could be achieved after eight to twelve injections, with only slightly higher levels of active substance attained. Testosterone levels clearly were reduced after the first injection of CPA, but the lowest values were registered only after three injections. Plasma concentrations of FSH and LH were slightly diminished, whereas the prolactin level increased after CPA therapy.

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