Difficulties in diagnosing the erased course of late neurosyphilis (clinical case)

In the article is presented clinical case of a patient with late parenchymal neurosyphilis in the form of progressive paralysis. The basis of the clinical manifestations of the disease in the patient was progressive cognitive impairment. The described case demonstrates clinical similarities with chronic cerebral circulatory disorders, multiple sclerosis, neurodegenerative and mental diseases, shows the need to remain vigilant of neurologists and therapists regarding rare but curable diseases of the nervous system due to their polymorphic clinical picture and erased course.