[Steroid-pulse therapy in Guillain-Barré syndrome associated with cytomegalovirus infection: a case report].

We report a 27-year-old man with Guillain-Barré syndrome (GBS) preceded by cytomegalovirus infection. He was admitted to our hospital because of distal dominant weakness and sensory disturbance 5 days after fever. Double filtration plasmapheresis (DFPP) was performed and clinical symptoms temporary but dramatically improved.

[Two cases of lumbosacral radiculopathy after intra-arterial infusion of cisplatin for treatment of uterine cancer].

A 60-year-old woman (case 1) experienced severe pain in the lower part of her leg and sciatic nerve paralysis the following day after intra-arterial infusion of cisplatin for the treatment of uterine body cancer. The symptoms gradually improved in the next six months. The lesion was not detected on pelvic MRI after two months.

Dementia and delirium in 4 patients with Machado-Joseph disease.

Background: Machado-Joseph disease (MJD; spinocerebellar ataxia type 3) is a hereditary neurodegenerative disease caused by mutation of the MJD1 gene. Patients with MJD usually present with cerebellar ataxia, external ophthalmoplegia, pyramidal and extrapyramidal signs, and muscle wasting. However, it has been reported that these patients do not demonstrate dementia.

[A case suspected of acute gas poisoning by carbon monoxide (CO), presenting with progressive diffuse leukoencephalopathy associated with marked brain edema].

A 51-year-old man was found comatose in a decerebrate posture in a cottage. Brain MRI showed diffuse high-signal-intensity areas in the white matter on T 2-weighted and FLAIR images, and diffusion-weighted images showed marked diffuse high intensity areas in the white matter. Initially inflammatory demyelinating diseases were suspected and methylprednisolone pulse therapy was administered.

Dystypia: isolated typing impairment without aphasia, apraxia or visuospatial impairment.

We report a 60-year-old right-handed Japanese man who showed an isolated persistent typing impairment without aphasia, agraphia, apraxia or any other neuropsychological deficit. We coined the term 'dystypia' for this peculiar neuropsychological manifestation. The symptom was caused by an infarction in the left frontal lobe involving the foot of the second frontal convolution and the frontal operculum.