[Primary mediastinal seminoma (apropos of 2 cases)]. / Séminome médiastinal primitif.

Two cases of primary mediastinal seminoma in patients aged 43 and 37 respectively are reported, with remarks on the pathogenesis, clinical features, diagnosis and treatment of the disease and a review of the literature. The favourable outcome in these two cases after 1 and 7 years respectively was remarkable. Emphasis is laid on the value of thoracotomy for the diagnosis and treatment.