A Case of Burned-out Testicular Tumor Discovered as Retroperitoneal Lymph Node Metastasis

Key Points

• To report a case of burned-out testicular tumor diagnosed through metastasis in retroperitoneal lymph nodes.
• 60-year-old male presented with abdominal pain and underwent abdominal CT.
• Surgical excision of the cystic tumor was performed based on imaging findings.
• Pathology identified atypical cells consistent with seminoma metastasis.
• Diagnosis confirmed as retroperitoneal lymph node metastasis from a seminoma, with no visible primary tumor in the testicles.
• Post-operative evaluation indicated scarring in the testicle, aligning with the concept of a burned-out testicular tumor.
• Clinical implications highlight the risk of missing the primary tumor in presentations of extragonadal germ cell tumors.