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Extracranial germ cell tumors are rare neoplasms that originate from primordial germ cells, the precursor cells of reproductive cells. Unlike intracranial germ cell tumors, which develop within the central nervous system, extracranial germ cell tumors occur outside the brain. These tumors primarily affect children and young adults. The most common extracranial site for germ cell tumors is the gonads, with the testes in males and ovaries in females being the primary locations. However, extragonadal sites, such as the mediastinum (the area between the lungs), retroperitoneum (behind the abdominal cavity), and sacrococcygeal region (near the tailbone), can also be affected. These tumors often present with diverse clinical manifestations depending on their location and size. Symptoms may include pain, swelling, or the detection of a mass during routine physical examinations. Laboratory tests, imaging studies, and biopsy are essential for accurate diagnosis and staging. Treatment approaches for extracranial germ cell tumors typically involve a combination of surgery, chemotherapy, and, in some cases, radiation therapy. The choice of treatment depends on factors such as the tumor's location, stage, and the patient's overall health. Given the rarity of these tumors, a multidisciplinary team of healthcare professionals is often involved in managing the care of affected individuals. Prognosis varies depending on various factors, including the tumor type, stage at diagnosis, and the response to treatment. With advances in medical research and treatment modalities, outcomes for patients with extracranial germ cell tumors have improved over the years. Long-term follow-up care is crucial to monitor for potential late effects of treatment and to address any recurrence or new developments.
