title: Accessory limbs associated with spina bifida - a second look.
abstract: An accessory limb associated with spina bifida was already reported by the authors. We had then described it as a result of a very early splitting of the limb bud arising from the paraxial mesoderm. We have subsequently seen three other such cases, which are described in this report as well as a review of five other cases in the literature. It is proposed that the growth of the accessory limb occurs from a mesodermal blastema that is a result of de-differentiation from Schwann cells.
authors.affiliation: Division of Pediatric Surgery, Department of Surgery, University College of Medical Sciences and GTB Hospital, Delhi 110 095, India.
authors.forename: A
authors.initials: A
authors.lastname: Krishna
authors.forename: P
authors.initials: P
authors.lastname: Lal
mesh_terms: D000015:Abnormalities, Multiple / Q000196:embryology / Q000453:epidemiology; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007866:Leg / Q000002:abnormalities*; D016135:Spinal Dysraphism / Q000196:embryology / Q000473:pathology*