Abstract
A 65-year-old male with a chief complaint of right leg spasms was examined in our hospital. His HbA1c (NGSP) level was 8.7 %, and urinary ketone bodies were positive (1+). Therefore, he was diagnosed as suffering from diabetic ketosis. Later, he was hospitalized because the spasms occurred frequently. On the fifth hospital day, right spastic pain and numbness progressed upward to the right arm. At the same time, a disturbance of consciousness, aphasia and hemiplegia developed. A brain computed tomography (CT) scan performed on admission showed no particular findings, except for brain atrophy. However, on the sixth hospital day, the patient was diagnosed as having a subdural abscess, as high-density and high-intensity areas were observed on the medial side of the left motor cortex and at the circumference of the right lateral ventricle on both a brain CT scan and magnetic resonance imaging. Thereafter, craniotomy was performed to reduce the brain pressure, and the abscess was removed. To the best of our knowledge, there are no reports of cases of type 2 diabetes with a subdural abscess without an antecedent infection or head trauma.
