[Rapidly progressive dementia due to neurosyphilis (general paralysis). A treatable case of dementia].

Rapidly progressive dementias are conditions of impairment in more than one cognitive domain with functional compromise that progress in less than 1 to 2 years; and neurosyphilis is one of the etiologies. Syphilis is a chronic bacterial infection that causes a series of highly variable clinical conditions during the first 2 to 3 years, followed by a prolonged latent stage that can progress to a tertiary infection stage. After a period of years, or even decades, a third of people with untreated latent syphilis will have clinical manifestations of tertiary syphilis such as neurosyphilis.

[Susac syndrome, a rare cause of encephalopathy].

Susac syndrome is a rare disorder caused by autoimmune-mediated occlusions of microvessels in the brain, retina and inner ear. These occlusions lead to a characteristic clinical triad of central nervous system dysfunction, visual disturbances and vestibule-cochlear deficits. The diagnosis is based on clinical manifestations and complementary studies, which demonstrate the involvement of three systems.

Holmes tremor: Clinical description, lesion localization, and treatment in a series of 29 cases.

Objective: To describe the clinical features, etiology, findings from neuroimaging, and treatment results in a series of 29 patients with Holmes tremor (HT).

Methods: A retrospective study was performed based on review of medical records and videos of patients with HT diagnosis.

Results: A total of 16 women and 13 men were included.

Writing tremor secondary to ischemic stroke: a report on a case with a remarkable response to topiramate.

Unlabelled: Writing tremor (WT) is a task-specific tremor that occurs only or mostly while writing with the dominant hand. Secondary cases are extremely uncommon. We report on a patient who, after developing a WT after an ischemic stroke, had a remarkable response to topiramate (TPM).