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• Vol.64 No.3
• CLINICA NEUROL, 64: 163−170, 2024
• Vol.64 No.3 contents

Case Report

Dystypia in a patient with subcortical ischemic stroke

Wakana Yamamoto, M.D. ¹⁾, Yuichiro Inatomi, M.D. ¹⁾ and Minoru Matsuda, M.D. ²⁾

¹⁾Department of Neurology, Saiseikai Kumamoto Hospital
²⁾Izumi-no-mori Clinic

A 58-year-old, right-handed man noticed difficulty in typing and speech. On day 3 after onset, the day of admission, he had frontal lobe dysfunction including verbal fluency impairment and impairment of recent memory, although he did not have apraxia or visual agnosia. Moreover, he had difficulty typing in romaji, especially words containing contracted or double consonant sounds, although he was able to do this before onset by visually checking the keyboard. He had mild dysgraphia. MRI showed an infarct in the genu and posterior limb of the left internal capsule. SPECT revealed low-uptake lesions in the left frontal lobe. In the present case, we consider that the subcortical infarction disrupted the network between the thalamus and frontal lobe, resulting in dystypia due to difficulty with recalling romaji spelling.
Full Text of this Article in Japanese PDF (1137K)

(CLINICA NEUROL, 64: 163−170, 2024)
key words: dystypia, ischemic stroke, thalamus, internal capsule, frontal lobe

(Received: 16-Jul-23)