Corpus callosum infarction with cognitive dysfunction: two case reports and literature review

Figures & data

Figure 1 Case 1 magnetic resonance imaging and MRA of brain.

Note: (A) DWI, (B) T1FLAIR, (C) T2FLAIR, and (D) MRA. It showed infarction on left posterior horn of the lateral ventricle and the splenium of the corpus callosum (A–C, arrow) and occlusion of the posterior cerebral artery (D arrow).
Abbreviations: DWI, diffusion-weighted imaging; T1FLAIR, T1 fluid-attenuated inversion recovery imaging; T2FLAIR, T2 fluid-attenuated inversion recovery imaging; MRA, magnetic resonance angiography.

Table 1 Case 1 MoCA

MoCA
Cognitive domain	First time	Second time
Visuospatial/executive
Modified trail making test	0	0
Copy of the cube	0	0
Clock drawing test	1	1
Naming	0	1
Memory
Attention
Digit span forward or backward	2	2
Letter A tapping test	1	1
Serial 7 subtractions	0	2
Language
Sentence repetition	2	2
Letter fluency	0	0
Abstraction	2	2
Delayed recall	0	3
Orientation	3	3
Total score	12	18

Note: The subjects had <12 years of education and one more point to correct the bias.

Abbreviation: MoCA, Montreal Cognitive Assessment.

Figure 2 Case 2 magnetic resonance imaging and MRA of brain.

Note: (A) DWI, (B) T2FLAIR, (C) T1FLAIR, (D) DWI, (E) T2FLAIR, (F) T1FLAIR. It showed acute infarcts in the left centrum semiovale, involving the body of corpus callosum (A–C, arrow) and multiple lacunae of infarction (D–F, arrow).
Abbreviations: DWI, diffusion-weighted imaging; T1FLAIR, T1 fluid-attenuated inversion recovery imaging; T2FLAIR, T2 fluid-attenuated inversion recovery imaging; MRA, magnetic resonance angiography.

Table 2 Case 2 MoCA

MoCA
Cognitive domain	First time	Second time
Visuospatial/executive
Modified trail making test	0	0
Copy of the cube	0	0
Clock drawing test	0	0
Naming	2	2
Memory
Attention
Digit span forward or backward	1	1
Letter A tapping test	0	0
Serial 7 subtractions	0	2
Language
Sentence repetition	1	1
Letter fluency	0	0
Abstraction	2	2
Delayed recall	1	3
Orientation	6	6
Total score	14	18

Note: The subjects had <12 years of education and one more point to correct the bias.

Abbreviation: MoCA, Montreal Cognitive Assessment.