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Teratoma is rare but one of major intra-abdominal congenital tumors such as Wilm’s tumor and neuroblastoma in childhood. This tumor represents abnormal development of fetal tissue remnants and is composed of the tissue derived from three embryonic layer. Although teratoma has been observed in many locations such as sacrococcygeal area, ovary, retroperitoneal cavity, intraperitoneal cavity, mediastinum, liver and brain ect.,... |
