Congenital Sacrococcygeal Neuroblastoma: A Report of Two Cases with Summary of Prior Published Cases.

Background Neuroblastoma can arise from extra-adrenal sites in the paraspinal sympathetic chain, including the presacral region, where they must be differentiated from an immature or malignant neural lesion arising from a teratoma. Case Report We describe two congenital presacral neuroblastomas. The main clinical differential diagnoses were sacrococcygeal teratoma and meningomyelocele. Pathologically, they lacked teratomatous tissues, lacked germ cell serum markers, were localized without metastases, and were MYCN non-amplified. Both patients have done well without chemotherapy at 18 and 15 months of follow-up. Conclusion Congenital presacral neuroblastoma should be differentiated from teratomatous lesions, and in general have a good prognosis. [ABSTRACT FROM AUTHOR]