[Malignant teratoma of the sacrococcygeal area in a fetus unrecognized in pregnancy].

A very rare case is presented of a giant teratoma malignum of the sacrococcygeal area in a fetus which caused obstetric difficulties. Attention in called to the necessity of differentiating such teratoma from other tumors in the region of the body, which is important for the decision concerning further prognosis and the time and mode of pregnancy termination. Good prognosis in cases of teratoma in this area suggests termination of pregnancy by ceasarean section. The newborn with teratoma was referred on the second day of life to surgical department where the tumour was removed radically without damaging the nearly organs. The need for more accurate prenatal diagnosis and labour management in specialised centres with available facilities for paediatric surgery are suggested.