<prompt> Primitive streak remanants give rise to ?NeuroblastomasWilms tumourSacrococcygeal teratomaHepatoblastoma  <response>: Sacrococcygeal teratoma SCT is a type of tumor known as a teratoma that develops at the base of the coccyx tailbone and is thought to be derived from the primitive streak. Sacrococcygeal teratomas are benign 75 of the time, malignant 12 of the time, and the remainder are considered immature teratomas that share benign and malignant features. Benign sacrococcygeal teratomas are more likely to develop in younger children who are less than 5 months old, and older children are more likely to develop malignant sacrococcygeal teratomas. The Currarino triad OMIM 176450, due to an autosomal dominant mutation in the MNX1 gene, consists of a presacral mass usually a mature teratoma or anterior meningocele, anorectal malformation and sacral dysgenesis. Ref: 