Primary or Secondary Extragonadal Germ Cell Tumors?

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Abstract
We reviewed 16 patients treated for primary extragonadal germ cell tumors whose testes were initially negative for cancer at palpation. Residues compatible with an occult testicular primary, overlooked at the pretreatment examination, were found in 10 of 12 patients with retroperitoneal germ cell tumors, whereas the testes in all 4 patients with mediastinal germ cell tumors showed no pathological signs. Therefore, we conclude that mere palpation to exclude a testicular primary is not sufficient and the testes of patients with so-called extragonadal germ cell tumors should be examined by all available means, at least by high frequency ultrasound. Orchiectomy is advisable if a focal lesion is found.