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Small fiber neuropathy is a condition characterized by severe pain. Symptoms typically begin in the feet or hands but can start in other parts of the body. Some people initially experience a more generalized, whole-body pain. The pain is often described as stabbing or burning, or abnormal skin sensations such as tingling or itchiness. In some ...
The periaqueductal gray (PAG), also known as the central gray, is a brain region that plays a critical role in autonomic function, motivated behavior and behavioural responses to threatening stimuli. [1] [2] PAG is also the primary control center for descending pain modulation. It has enkephalin-producing cells that suppress pain.
Patients show visible folds, ridges or creases on the surface of the top of the scalp. [2] The number of folds can vary from two to roughly ten and they are typically soft and spongy. The condition typically affects the central and rear regions of the scalp, but sometimes can involve the entire scalp.
Central pain syndrome, also known as central neuropathic pain, [1] is a neurological condition consisting of constant moderate to severe pain due to damage to the central nervous system (CNS) which causes a sensitization of the pain system. [2] [3] The extent of pain and the areas affected are related to the cause of the injury. [4]
Scalp dysesthesia is a cutaneous condition characterised by pain and burning sensations without objective physical examination findings. [1]: 64 The pain sometimes is described as burning. Often there is an underlying psychosomatic cause, such as stress, depression or anxiety. [2] Only a few studies have been conducted on this condition.
The most frequent presenting signs and symptoms of primary CNS vasculitis were focal neurological defecits (seen in 63% of cases), headaches (51%) and cognitive impairment (41%). [4] Other presenting symptoms include aphasia or other difficulties with speech (35-43%), ataxia , visual field deficits, acute or subacute encephalopathy (which may ...
Scientists in Brazil found microplastics in the brain tissue of cadavers, according to a new study published Monday in the journal JAMA Network Open.. Mounting research over the last few years has ...
The pyramidal tracts include both the corticobulbar tract and the corticospinal tract.These are aggregations of efferent nerve fibers from the upper motor neurons that travel from the cerebral cortex and terminate either in the brainstem (corticobulbar) or spinal cord (corticospinal) and are involved in the control of motor functions of the body.