Sacrococcygeal teratomas in infants and children: relationship of histology and prognosis in 40 cases.

摘要: Histological grading of teratomas is a useful method for evaluating patient prognosis. Although this has been repeatedly shown with ovarian teratomas, those the sacrococcygeal area have not scrutinized to comparable extent. We believe that histologic grade and clinical behavior correlate closely in congenital teratomas. Correlation staging less clear. There are some taxonomical conceptual problems posed by nature these tumors. The worst prognosis dictated presence yolk sac tumor areas, which was seen seven 40 examined. neuroectodermal component common, here proved metastasizing capacity, its inherent tendency may be toward spontaneous self-limiting differentiation. Vitelline differentiation, however, seems imply irreversible progression uniformly bad