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Goldmann visual fields show a right homonymous hemianopia in a patient with pure alexia. (Contributed by Dr. Michael Vaphiades.)
Neuro-Ophthalmology & Neuro-Otology
Oct. 21, 2020
Headache & Pain
Mood disorders, anxiety disorders, and personality disorders can all coincide with migraine, and onset of depression either preceding or following migraine is common. Shared genetic vulnerability and environmental factors are the most likely explanations for migraine and comorbid depression.
Dec. 27, 2020
Hypertensive encephalopathy is a syndrome in which altered mental status, headache, vision changes, and/or seizures accompany elevated blood pressure. Failure of cerebral autoregulation from a sudden elevation of blood pressure results in endothelial injury and vasogenic edema. Early recognition and correction of hypertension often results in reversal of the encephalopathy; without prompt treatment, permanently damaging ischemia or hemorrhage may result.
Sep. 30, 2020
Myasthenia gravis is an autoimmune disorder characterized by fluctuating weakness of voluntary muscles, with a propensity for involvement of ocular muscles. Drug-induced myasthenic syndromes are caused by numerous medications of various classes. Some medications, such as the classic example of D-penicillamine, may induce a disturbance of the immune system that results in the development of myasthenia gravis, whereas many other agents produce weakness by direct compromise of neuromuscular transmission.
Dec. 28, 2020
Rett syndrome features include deceleration of head growth, repetitive and stereotyped hand movements, loss of purposeful hand movements, and partial or complete loss of expressive language. It is a neurodevelopmental disorder of the grey matter of the brain that primarily affects females, and can cause severe intellectual disability and seizures.
Apr. 01, 2021
Jun. 12, 2020
Neuropharmacology & Neurotherapeutics
Chiropractic healthcare is based on the relationship between the vertebral column and musculoskeletal system and on the function of various systems of the body, particularly the nervous system. Cervical spine manipulations are carried out for spinal problems and are claimed to benefit many other diseases as well. However, neurologic complications can result from cervical spinal manipulation, such as compression or dissection injury of the vertebral artery, causing stroke.
Jul. 16, 2021
African sleeping sickness is a devastating epidemic that affects tens of thousands of sub-Saharan Africans. The causative agent usually belongs to 1 of 3 species of the Trypanosoma genus and is transmitted to humans through a vector, the tsetse fly. Neurologic manifestations, including headache, altered EEG, and mood changes, may occur during the initial febrile period before trypanosomes can be detected in the cerebrospinal fluid and are associated with meningeal inflammation.
Oct. 20, 2020