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Case Reports
. 2023 Jan 27;15(1):e34269.
doi: 10.7759/cureus.34269. eCollection 2023 Jan.

Atypical Imaging Findings of Nonketotic Hyperglycemic Hemichorea: A Case Report and Review of the Literature

Christopher M Stevens  1 , Kevin Malone  2 , Arielle Degueure  3 , Amro Saad Aldine  1 , Octavio Arevalo  4
Affiliations
Case Reports

Atypical Imaging Findings of Nonketotic Hyperglycemic Hemichorea: A Case Report and Review of the Literature

Christopher M Stevens et al. Cureus. .

Abstract

Nonketotic hyperglycemic hemichorea (NH-HC) is a rare condition presenting in the clinical setting. Brain imaging plays an important role in diagnosing NH-HC, which typically shows basal ganglia changes contralateral to the side of the hemiballismus/hemichorea. Only a few articles in the literature have reported normal pertinent magnetic resonance/CT findings in patients presenting with NH-HC. To the authors' knowledge, no cases in the literature have reported basal ganglia changes solely observed on CT but not on MRI in patients presenting with NH-HC. Herein, we describe a unique case in which a CT of a patient presenting with NH-HC demonstrated basal ganglia abnormalities with negative MRI findings.

Keywords: basal; basal ganglia; computed tomography; ganglia; hemichorea; hyperglycemic; imaging; magnetic resonance imaging; nonketotic; nonketotic hyperglycemic hemichorea.

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Conflict of interest statement

The authors have declared that no competing interests exist.

Figures

Figure 1
Figure 1. Noncontrast CT of the head showing bilateral basal ganglia calcification with hyperattenuation of the left putamen (red arrows)
Figure 2
Figure 2. No vascular abnormality is seen on the brain MRI
See this image and copyright information in PMC

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