Acta Neuropathologica

, Volume 54, Issue 2, pp 169–172 | Cite as

Abnormally high content of unmyelinated axon profiles in the ventral root L 7 of a cat with an abdominal neoplasm

  • M. Risling
  • C. Hildebrand
Short Original Communications


The ventral roots L7 of a cat with an intestinal neoplasm were examined electronmicroscopically at different proximo-distal levels. The proportion of unmyelinated axon profiles was 50–55% at mid-root and distal levels as compared to 30% in normal adult cats. In the juxtamedullary root fascicles the proportion was normal (average 20%), and few unmyelinated axons seemed to penetrate into the CNS through the ventral root. The number of myelinated axons was within the normal range.

Key words

Unmyelinated ventral root axons Neoplasm Nerve growth 


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Copyright information

© Springer-Verlag 1981

Authors and Affiliations

  • M. Risling
    • 1
  • C. Hildebrand
    • 1
  1. 1.Department of AnatomyKarolinska InstitutetStockholmSweden

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