testicular teratoma

A teratoma is a rare tumor that develops from germ cells, which are the precursors to eggs and sperm, or from germ layers formed during embryonic development. These tumors can occur in various parts of the body, but are most common in the ovaries or testes, making them a frequent type of testicular cancer.1

Testicular cancer, while accounting for only about 1% of all male cancers, is the most common malignancy in men aged 15 to 35. Approximately 90-95% of testicular cancers are germ cell tumors, classified as seminomas or nonseminomas. Teratomas fall under the nonseminoma category and can contain a variety of differentiated cells, such as hair, teeth, muscle, or bone. Symptoms often include a painless lump or swelling in the testis. Treatment typically involves surgery, and sometimes chemotherapy or radiation therapy, with high survival rates for early detection.21