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Congenital retroperitoneal large size neuroblastoma

We experienced a rare case of 9-months-old girl with an abdominal neuroblastoma that exhibited radiographic evidence of tumor extension into the mesenteric artery. Imaging studies were suggestive of neuroblastoma which also confirmed by the histologic analysis that show a diagnosis of neuroblastoma too. The patient never underwent initial chemotherapy for the treatment of neuroblastoma but experienced operation for tumor and resection was successfully achieved. This case and the treatment strategy are discussed in this paper.