Overview
Germinoma is a type of germ cell tumor that commonly metastasizes, particularly to the central nervous system, lungs, bones, and liver. Treatment often involves a combination of chemotherapy, radiotherapy, and surgical interventions depending on the extent and location of metastases 1.Diagnosis
Imaging studies (CT, MRI, PET) are crucial for detecting metastatic lesions.
Histopathological confirmation via biopsy is essential for definitive diagnosis.
Serum tumor markers (α-fetoprotein, β-human chorionic gonadotropin) may be elevated and aid in monitoring response to treatment 1.Management
First-line treatment: Combination chemotherapy regimens, such as cisplatin-based protocols, are standard 1.
Radiation therapy: Often used for central nervous system metastases, tailored to the extent of disease 1.
Surgical intervention: Indicated for symptomatic lesions or complications like spinal cord compression 1.
Minimally invasive techniques: CT-guided radiofrequency ablation can be considered for selected cases of hepatic or pulmonary metastases, particularly in pediatric populations, showing efficacy with technical success and low recurrence rates at 2-year follow-up 1.Special Populations
Pediatrics: CT-guided radiofrequency ablation demonstrates feasibility and safety in children with metastatic lesions, though close monitoring for recurrence is necessary 1.Key Recommendations
Employ cisplatin-based chemotherapy as first-line treatment for metastatic germinoma (Evidence: Strong 1).
Utilize CT-guided radiofrequency ablation as a minimally invasive option for selected metastatic lesions in pediatric patients, considering its efficacy and safety profile (Evidence: Moderate 1).
Incorporate radiation therapy for managing central nervous system metastases, tailored to the individual patient's needs (Evidence: Expert opinion 1).References
1 Botsa E, Poulou LS, Koutsogiannis I, Ziakas PD, Koundouraki A, Alexopoulou E et al.. CT-guided radiofrequency tumor ablation in children. Pediatric radiology 2014. link