[Testosterone substitution in patients with hypogonadism].

Objective: After the age of 60, 20-35% of men present with androgen deficiency. Clinical symptoms of hypogonadism in older men are often more difficult to interpret than in younger men. Knowledge of physiological actions of testosterone and its metabolites are important prerequisites for diagnosis, drug selection and surveillance of therapy.

[Methylene blue: an effective therapeutic alternative for priapism induced by intracavernous injection of vasoactive agents].

Objective: Priapism is defined as prolonged and persistent erection of the penis without sexual stimulation. Etiologies of this condition are numerous. Recent advances in the understanding of erectile physiology have improved the prompt diagnosis and treatment of priapism.

[Frequency and cause of death in patients with testicular germinal tumors at our center: retrospective analysis].

Objective: The introduction of cisplatin in testis cancer therapy significantly reduced the mortality rate. However, data from previous studies indicate that mortality is higher than expected. The aim of our retrospective study in a single center was to evaluate the mortality rate of testicular germ cell tumors.