title: [Apropos of embryonal sympathmas in children. (Study of 7 cases with retroperitoneal and mediastinal localizations)].
mesh_terms: D002648:Child; D006801:Humans; D007223:Infant; D008479:Mediastinal Neoplasms; D008482:Mediastinum; D009369:Neoplasms; D009447:Neuroblastoma; D012186:Retroperitoneal Neoplasms; D012187:Retroperitoneal Space
keywords: MEDIASTINUM/neoplasms; NEUROBLASTOMA/in infancy and childhood; RETROPERITONEAL SPACE/neoplasms