Transient Lesion of the Splenium of the Corpus Callosum after Acute Ischemic Stroke: A Report of Two Cases

Yoshitaka Yamaguchi; Yuko Iwasaki; Manabu Wada; Naoki Makita; Hikaru Nagasawa; Tatsushi Yamakawa; Kazunori Toyoda

doi:10.2169/internalmedicine.1010-18

This article has now been updated. Please use the final version.

Transient Lesion of the Splenium of the Corpus Callosum after Acute Ischemic Stroke: A Report of Two Cases

Yoshitaka Yamaguchi, Yuko Iwasaki, Manabu Wada, Naoki Makita, Hikaru Nagasawa, Tatsushi Yamakawa, Kazunori Toyoda

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Keywords: acute ischemic stroke, magnetic resonance imaging, mild encephalitis/encephalopathy with a reversible splenial lesion, splenium of the corpus callosum, transient lesion in the splenium of the corpus callosum

JOURNAL OPEN ACCESS Advance online publication

Article ID: 1010-18

DOI https://doi.org/10.2169/internalmedicine.1010-18

The final version of this article is now available: Vol. 58 (2019), No. 7 pp. 1011-1015

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Abstract

Two patients who showed transient lesions in the splenium of the corpus callosum (SCC) secondary to acute ischemic stroke are reported. Both patients had embolic strokes and showed an isolated lesion in the SCC on magnetic resonance imaging (MRI) 1-2 weeks after the onset of stroke, with a hyperintense lesion on DWI and decreased apparent diffusion coefficient (ADC) values, with no symptoms related to the lesion. In both cases, the lesion disappeared on MRI approximately 1 week later. Clinicians should note that transient SCC lesions can occur following acute ischemic stroke and avoid misdiagnosing them and performing unnecessary examinations or treatment.

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