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• Vol.42 No.4
• CLINICA NEUROL, 42: 299−303, 2002
• Vol.42 No.4 contents

Case Report

A case of slowly progressive aphasia accompanied with auditory agnosia

Satoko Kuramoto, M. D. ¹⁾, Teruyuki Hirano, M. D. ¹⁾, Eiichiro Uyama, M. D. ¹⁾, Kaori Tokisato, M. D. ²⁾, Mayumi Miura, M. D. ³⁾, Susumu Watanabe, M. D. ²⁾ and Makoto Uchino, M. D. ¹⁾

¹⁾Department of Neurology, Kumamoto University School of Medicine
Departments of ²⁾Neurology and ³⁾Linguistics, Kumamoto Kino Hospital, Kumamoto, Japan

A 68-year-old right-handed woman was admitted to our hospital because of difficulty to speak and understand conversation over 10 years. She was able to make herself by writing. No change in her personality or behavioral abnormality was observed so that she could live without help. Although her WAIS score and auditory brain stem response were normal, she could not understand the speech or distinguish the sound. She also spoke plenty of words fluently, resulting in undifferentiated jargon. She did not make any effort in speaking, Her speech was, however, unclear and hard to understand.
Brain MRI scan disclosed a moderate atrophy of bilateral temporal lobe and enlargement of Sylvius fissure. A three-dimension reconstructed brain surface image showed enlargement of the perisylvian fissure, and atrophy of the gyrus frontalis inferior, operculum, gyrus temporal superior, bilaterally. Reduced cerebral blood flow was demonstrated on 99mTc-ECD SPECT in the left thalamus and bilateral fronto-temporal lobe.
A diagnosis of slowly progressive aphasia with auditory agnosia was made. Our case suggests that bilateral disturbance of neuronal network between the primary auditory area and the secondary auditory area is responsible to the consequence of auditory agnosia.

(CLINICA NEUROL, 42: 299−303, 2002)
key words: auditory agnosia, slowly progressive aphasia, MRI 3D reconstructed brain surface image, temporal lobe

(Received: 2-Nov-01)