Methods Fifteen children with mediastinal tumours were studied retrospectively. There were neuroblastoma (NS, 5), ganglioneuroma (3), Schwannoma(1), thymoma (2), teratoma (2), lymphangioma (1) and endodermal sinus tumour (EDST 1).

• 方法 15 例小儿纵隔肿瘤， 其中神经母细胞瘤5 例， 神经节细胞瘤3 例， 神经鞘瘤1 例， 胸腺瘤及畸胎瘤各2 例， 淋巴管瘤和内胚窦瘤各1 例。