Testicular seminoma presenting 22 years after treatment for extra-gonadal germ-cell tumour

We report an interesting case of testicular seminoma in a 57-year-old man who had received treatment for a pulmonary extra-gonadal seminoma 22 years previously. This case indicates that patients with extra-gonadal germ-cell tumours should either be followed up for life or, if discharged, should be informed of the potential risk of developing testicular tumour in the future and advised of the need for regular self-testicular examination.