Is mediastinal irradiation necessary for stage I testicular seminoma?

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Abstract
This study is a review of 39 patients with testicular seminoma, Stage I, treated at the Department of Radiation Oncology, James Graham Brown Cancer Center from 1959 to 1978. The age of the patients ranged from 16 to 70 years with a median of 37. Thirty‐two (82%) patients presented with swelling or mass in the testis, four patients with pain, and three patients had seminoma diagnosed incidentally. Twenty (51%) patients had the tumor on the right side and 19 (49%) patients had the tumor on the left side. All patients received irradiation to the ipsilateral inguinal, iliac, and bilateral para‐aortic nodes with “hockey stick” type fields. The majority of the patients received a midplane dose of 3,200 to 3,600 rad in 3–4 weeks time. None of the patients received prophylactic irradiation to the mediastinum and supraclavicular region. The 5‐year actuarial survival rate is 96%. There is no additional benefit in giving prophylactic irradiation to the mediastinum and supraclavicular regions in Stage I testicular seminoma. A brief review of the literature regarding the, role of prophylactic irradiation in this group of patients is done.