Type:
Educational Exhibit
Keywords:
Endocrine disorders, MR, CT, Neuroradiology brain
Authors:
N. Silva Priegue1, E. Santos Armentia2, J. A. Aguilar Arjona2, M. González Vázquez2, D. Castellón Plaza2, J. Calatayud Moscoso Del Prado2; 1Vigo /ES, 2Vigo/ES
DOI:
10.1594/ecr2011/C-1718
Background
•Hyperosmolar non-ketotic hyperglycemia syndrome is a frequent complication of diabetes mellitus (DM) in older patients,
and has been associated with various neurological abnormalities.
•Hemiballism-hemichorea is an involuntary,
purposeless,
wide amplitude,
and poorly patterned movement disorder; the more common causes are: vascular lesions,
metabolic derangements,
neoplasms,
and infectious diseases of the central nervous system,
being an uncommon manifestation of DM.
• Hyperglycemia-associated chorea and ballism is a syndrome with unique radiological features.
It´s considered benign with good prognosis,
however there are cases with persistence of dyskinesia after several years or even that required surgical treatment.
• The pathophysiological mechanism underlying this syndrome remains unknown,
existing varied theories that attempt to explain the variation in MR findings and clinical symptoms.