[Seminoma of the anterior mediastinum in a 13-year-old child].
D000293:Adolescent; D004407:Dysgerminoma / Q000473:pathology*; D006801:Humans; D008297:Male; D008479:Mediastinal Neoplasms / Q000473:pathology*
Seminoma perednego sredosteniia u rebenka 13 let.