Acute haemorrhagic leucoencephalitis (AHLE)—also called Hurst disease, Weston Hurst syndrome, acute haemorrhagic encephalomyelitis (AHEM)—is a very rare, hyper-acute inflammation of the brain’s white ...
Acute flaccid myelitis (AFM) is a sudden illness that damages the gray matter of the spinal cord, especially the front (anterior horn) cells that control muscles. Because these motor nerve cells are ...
Mean Corpuscular Volume (MCV) is a blood test measurement that shows the average size of your red blood cells. Red blood cells carry oxygen from your lungs to the rest of your body. When MCV is ...
Functional Neurological Symptom Disorder (FNSD) is a condition where individuals experience real neurological symptoms—such as weakness, tremors, or seizures—without any detectable structural or ...
Sjögren–Larsson syndrome is a rare, inherited disorder that affects both the skin and the nervous system. It arises because of a deficiency of the enzyme fatty aldehyde dehydrogenase (FALDH), caused ...
Congenital Myasthenic Syndromes (CMS) are a group of inherited disorders affecting the safety and reliability of signal transmission at the neuromuscular junction, where nerves meet muscle fibers. In ...
Progressive Supranuclear Palsy (PSP) is a rare, progressive neurodegenerative disorder characterized by the abnormal accumulation of tau protein in certain brain regions, leading to widespread ...
Abducens nerve palsy is a condition in which the sixth cranial nerve (the abducens nerve) does not function properly, leading to weakness or paralysis of the lateral rectus muscle. This muscle is ...
Mixed sensory-autonomic ganglionopathy (MSAG) is a rare disorder in which both sensory and autonomic ganglia—the nerve cell clusters responsible for transmitting sensory information (touch, pain, ...
Small-fiber sensory ganglionopathy (SFSG) is a rare disorder characterized by selective injury to the cell bodies (ganglia) of the small-diameter sensory neurons in the dorsal root ganglia (DRG), ...
Large-fiber sensory ganglionopathy, also known as sensory neuronopathy, is a disorder in which the sensory neurons located in the dorsal root ganglia—the clusters of nerve cell bodies along the ...
Vasculitic Sensory Ataxic Neuropathy is a rare form of peripheral nerve injury in which inflammation of the small blood vessels (vasculitis) supplying the sensory nerves leads to loss of ...
Sarcoidosis-related sensory neuropathy is a form of peripheral nerve damage that arises as a complication of sarcoidosis, a multisystem granulomatous disease. In sarcoidosis, clusters of inflammatory ...
POEMS syndrome is a rare multisystem disorder caused by an underlying plasma cell disorder. The name “POEMS” stands for Polyneuropathy, Organomegaly, Endocrinopathy, Monoclonal gammopathy, and Skin ...
Hereditary demyelinating sensory neuropathies are a group of inherited disorders in which the protective myelin sheath surrounding sensory nerve fibers is damaged due to genetic mutations. This ...
Paraneoplastic sensory ataxic neuropathy (PSAN) is a rare neurological condition that arises as an indirect effect of cancer elsewhere in the body. It is “paraneoplastic” because the immune system, ...
