Postmortem examination of the central nervous system (CNS) of a dicephalus thoracopagus tetrapus revealed two separate brains and spinal cords. On the conjoined side the spinal cord showed hypoplasia of the anterior horns and dorsal funiculi at the lower cervical and upper thoracic levels. Hypoplasia of the peripheral nerves, anterior horn cells, and dorsal funiculi is a consequence of a reduction in tissue mass due to a loss of inductive influence.
This is a preview of subscription content, log in to check access.
Buy single article
Instant access to the full article PDF.
Price includes VAT for USA
Subscribe to journal
Immediate online access to all issues from 2019. Subscription will auto renew annually.
This is the net price. Taxes to be calculated in checkout.
Hori A, Fischer G, Dietrich-Schott B, Ikeda K (1982) Dimyelia, diplomyelia, and diastematomyelia. Clin Neuropathol 1:23–30
Jacobson M (1978) Developmental neurobiology, 2 edn Plenum Press, New York, pp 280, 287–292, 302–307
Moore KL (1973) The developing human. Clinical oriented embryology. Saunders, Philadelphia, pp 12–53, 306–334
Pearson J, Pytel BA (1981) Neuronal survival and peripheral tissue size during human embryogenesis: Study of a partial twinning. Dev Neurosci 4:142–149
Potter EL (1961) Pathology of the fetus and the infant, 2 edn. Year Book Medical Publishers, Chicago, pp 216–233
Slager UT, Anderson VM, Handmaker SD (1981) Cephalothoracopagus janiceps malformation. A contribution to the pathogenesis of cerebral malformation. Arch Neurol 38:103–108
Willis RA (1958) The borderland of embryology and pathology. Butterworth, London, pp 1–16, 17–53
Zimmermann AA (1967) Embryologic and anatomic considerations of conjoined twins. Birth Defects 3:18–27
About this article
Cite this article
Wongmongkolrit, T., Lederhandler, M. & Roessmann, U. Central nervous system of a thoracopagus. Acta Neuropathol 63, 80–82 (1984). https://doi.org/10.1007/BF00688475
- Nervous system
- Conjoined twins