Anaplastic seminoma (5-15% of patients)
Classic seminoma (the most common histologic type)
Abdominal and pelvic CT scanning: Can be used to identify metastatic disease to the retroperitoneal lymph nodes, but it results in understaging in approximately 15-20% of patients thought to be at stage I
Chest CT scanning: Indicated only when abnormal findings are observed on a chest radiograph
Spermatocytic seminoma (a rare variant that occurs in older adults)
Fluoro-2-deoxy-D-glucose (FDG) PET scanning: May be useful in restaging assessments of residual masses following chemotherapy
