Late relapsing germ cell tumors with elevated tumor markers

Area of Science:

• Oncology
• Urology
• Cancer Research

Background:

• Late relapsing germ cell tumors (LR-GCT) represent a distinct entity with unique clinical behavior.
• Serum tumor markers (AFP and ß-HCG) are crucial for initial diagnosis and prognosis but their role in LR-GCT is less defined.

Purpose of the Study:

• To evaluate the significance of serum tumor markers in late relapsing germ cell tumors.
• To analyze the histopathological findings and oncological outcomes in patients with LR-GCT.
• To determine the optimal treatment strategy for LR-GCT.

Main Methods:

• Retrospective analysis of 37 patients with LR-GCT and elevated serum tumor markers.
• Review of histological findings, serum tumor marker levels, and oncological outcomes.
• Comparison of outcomes between primary surgical resection and salvage chemotherapy followed by surgery.

Main Results:

• Viable cancer was found in 54% of specimens, teratoma in 43%, and somatic malignant transformation in 24%.
• Histological type at late relapse differed from primary histology in 51.4% of cases.
• Seventeen patients (77.3%) experienced relapse or progression after LR therapy; 5 patients (22.7%) remained relapse-free.

Conclusions:

• Patients with LR-GCT and elevated markers have a poor prognosis and high risk of further relapse.
• Serum tumor marker levels do not predict the histological type or aggressiveness of LR-GCT.
• Primary surgical resection is proposed for LR-GCT to obtain accurate histology and guide treatment.