Mature sacrococcygeal teratoma containing the lower half of a human body

Childs Nerv Syst. 1992 Mar;8(2):108-10. doi: 10.1007/BF00298453.


Twins were diagnosed by ultrasound in a 29-year-old woman. The cesarean delivery revealed at first a mature girl with a large benign sacrococcygeal teratoma and then a healthy boy. X-ray and CT examinations of the teratoma showed pelvic and lower limb bones. A mature teratoma-tridermoma (weight 475 g) containing the underdeveloped lower half of a human body was confirmed during surgery and verified morphologically. The fraternal twins, i.e., the girl operated upon and her brother, have been followed for 5 years and are without any complaints. They have normal neurological function.

Publication types

  • Case Reports

MeSH terms

  • Child, Preschool
  • Coccyx / abnormalities*
  • Coccyx / pathology
  • Coccyx / surgery
  • Diseases in Twins* / genetics
  • Female
  • Follow-Up Studies
  • Humans
  • Infant
  • Infant, Newborn
  • Male
  • Neurologic Examination
  • Sacrum / abnormalities*
  • Sacrum / pathology
  • Sacrum / surgery
  • Spinal Neoplasms / genetics*
  • Spinal Neoplasms / pathology
  • Spinal Neoplasms / surgery
  • Teratoma / genetics*
  • Teratoma / pathology
  • Teratoma / surgery