What are testicular neoplasms?

➢ Occur in roughly 6 per 100,000 males. ➢ In the 15- to 34-year-old age group, when these neoplasms peak in incidence, they are the most common tumors in men. ➢ heterogeneous and include germ cell tumors and sex cord–stromal tumors. ➢ In postpubertal males, 95% of testicular tumors arise from germ cells, and almost all are malignant. ➢ By contrast, sex cord-stromal tumors derived from Sertoli or Leydig cells are uncommon and usually benign