Cerebrum (Neurologic) Disorders

What Is Dementia? Dementia is the term used to describe a group of symptoms that show significant deterioration of an individual’s intellectual and social abilities. The deterioration in intellectual function is progressive and is characterized by memory and cognitive impairment involving deficits ...

What Is Chronic Syndrome Fatigue? Chronic fatigue syndrome is a debilitating illness characterized by persistent or relapsing overwhelming and incapacitating fatigue not relieved by rest, having a definite onset and often accompanied by numerous symptoms involving various body systems. This ...

What Is Headache Or Emicrania? Emicrania is a headache resulting from stimulation of, or traction of, or pressure on any of the pain sensitive structures of the head characterized by pain felt anywhere in the head. In addition to gluten ...

What Is Chronic Fatigue? Chronic fatigue or lassitude is a state of weariness not relieved by rest and the inability to do normal physical or mental work. Q: What are causes of chronic fatigue? A: Chronic fatigue can be a ...

What Is Multiple Sclerosis? Multiple sclerosis is an autoimmune disease of the central nervous system characterized by patchy inflammation of the myelin sheath surrounding nerve cells that produces multiple and varied neurologic symptoms and signs due to demyelination. Q: What ...

What Is Developmental Delay? Developmental delay is failure in infants and young children to meet expected milestones, such as smiling for the first time or taking the first steps, due to an impairment in physical, learning, language, or behavior areas. These ...

What Is Cerebral Vasculitis? Cerebral vasculitis, also called vasculitis of the central nervous system (CNS), is an autoimune attack against elastin fibers in the walls of arteries that bring blood to the head. Early recogniton may reduce poor outcomes.1 Cerebral ...

What Is Progressive Multifocal Leukoencephalopathy? Progressive multifocal leukoencephalopathy is a progressive demyelinating disorder of the central nervous system (brain) caused by JC virus that leads to rapid death. Progressive multifocal leukoencephalopathy usually occurs as an opportunistic infection in patients with ...

What Is Occipital Lobe Epilepsy With Cerebral Calcifications? Occipital lobe epilepsy with cerebral calcifications is a seizure disorder that develops from calcium deposits in the brain. This condition is characterized by repetitive abnormal electrical discharges within the brain that may ...

What Is Migraine? Migraine is a neurologic disorder characterized by reduced cerebral blood flow that causes a severe headache. The pain is usually on one side of the head, pulsates, and is aggravated by bodily exertion that increases blood pressure. ...

What Is Epilepsy? Epilepsy is a dysfunctional disorder of the brain characterized by recurring seizures also called convulsions. Q: What happens in a seizure? A: During a seizure  abnormal electrical discharges occur within the brain. Not all seizures have the same intensity ...

What Is Cortical Calcifying Angiomatosis? Cortical calcifying angiomatosis is a cortical vascular (brain blood vessel) abnormality that is characterized by calcification of blood vessels and is usually present in the parietal or occipital cortical and subcortical regions of the brain.1 ...

What Are Brain Blood Flow Abnormalities? Brain blood flow abnormalities, or cerebral perfusion abnormalities, such as spasm of blood vessels causing inadequate blood flow to the brain, are characterized by impaired brain function and thinking. Q: What is cerebral perfusion? A: ...

What Is Brain Atrophy? Brain atrophy is a degenerative condition of the brain characterized by loss of brain tissue, causing the brain to shrink. Q: How does loss of brain tissue affect the body? A: Loss of brain tissue will ...

What Is Increased Appetite? Increased appetite is the increased desire for food. Q: What causes appetite. A: Appetite is caused by hunger. The brain monitors nutritional needs and employs a hunger mechanism to alert us when fresh food is needed. Hunger is ...