title: A case of type III cystic sacrococcygeal teratoma.
abstract: We report a rare case of congenital type III cystic teratoma that may be falsely diagnosed as an anterior sacral meningocele. A female newborn baby presented with a long, white-colored 4 x 1 cm coccygeal cyst posterior to the anus. Magnetic resonance imaging (MRI) demonstrated that a 10 x 4 cm elliptical intrapelvic and -abdominal mass anterior to the sacrum and coccyx extended inferiorly to the retrorectal space. We intraoperatively found that the cyst consisted of a mostly thin, white wall, but also with small posterior narrow nodules. We suggest that all cysts in the sacrococcygeal area should be excluded from teratoma carefully, with MRI.
authors.affiliation: Department of Neurosurgery, Ajou University School of Medicine, Suwon, Korea.
authors.forename: Soo Han
authors.initials: SH
authors.lastname: Yoon
authors.forename: Se-Hyuck
authors.initials: SH
authors.lastname: Park
mesh_terms: D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008279:Magnetic Resonance Imaging; D008588:Meningocele / Q000175:diagnosis; D012445:Sacrococcygeal Region; D013125:Spinal Neoplasms / Q000151:congenital / Q000175:diagnosis* / Q000601:surgery; D013724:Teratoma / Q000151:congenital / Q000175:diagnosis* / Q000601:surgery