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Fine needle aspiration cytologic diagnosis of ganglioneuroblastoma.

Two children with ganglioneuroblastomas in different locations underwent fine needle aspiration (FNA). Clinically, the tumor in the presacral area was diagnosed as a benign teratoma and the retroperitoneal tumor as a neuroblastoma. Both tumors were correctly diagnosed preoperatively as ganglioneuroblastomas by FNA cytology. The smears showed the characteristic Homer-Wright rosettes, ganglion cells and fibrillar material.