Abstract
Hypertrophic olivary degeneration (HOD) is caused by disruption of the triangle of
Guillain and Mollaret. We describe a child with a primitive neuroendocrine tumor who
developed an expansile nonenhancing lesion in the olive after surgery and radiation
therapy. Diffusion tensor imaging and tractography showed disruption of the central
tegmental tract consistent with HOD. Subsequent transient enhancement of the olive
was consistent with early radiation injury. Knowledge of coexisting complications
such as HOD and radiation injury is essential for proper management.
Keywords
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Article info
Publication history
Published online: November 07, 2011
Accepted:
September 28,
2011
Received:
September 7,
2011
Identification
Copyright
© 2012 Elsevier Inc. Published by Elsevier Inc. All rights reserved.
