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Frequency. 1 in 1,000,000. Stiff-person syndrome (SPS), also known as stiff-man syndrome, [1] is a rare neurological disorder of unclear cause characterized by progressive muscular rigidity and stiffness. The stiffness primarily affects the truncal muscles and is characterised by spasms, resulting in postural deformities.
Gerstmann syndrome is a neurological disorder that is characterized by a constellation of symptoms [1] that suggests the presence of a lesion usually near the junction of the temporal and parietal lobes at or near the angular gyrus. Gerstmann syndrome is typically associated with damage to the inferior parietal lobule of the dominant hemisphere.
Hyperekplexia (/ ˌhaɪ.pər.ɛkˈplɛk.si.ə /; "exaggerated surprise") is a neurological disorder characterized by a pronounced startle response to tactile or acoustic stimuli and an ensuing period of hypertonia. The hypertonia may be predominantly truncal, attenuated during sleep, or less prominent after one year of age.
Musical ear syndrome (MES) describes a condition seen in people who have hearing loss and subsequently develop auditory hallucinations. "MES" has also been associated with musical hallucinations , which is a complex form of auditory hallucinations where an individual may experience music or sounds that are heard without an external source. [ 1 ]
Savant syndrome (/ ˈsævənt, sæˈvɑːnt / SAV-ənt, sə-VAHNT, US also / səˈvɑːnt / sav-AHNT) is a phenomenon where someone demonstrates exceptional aptitude in one domain, such as art or mathematics, despite significant social or intellectual impairment. [1]
Medication. Corticosteroids. Polymyalgia rheumatica (PMR) is a syndrome experienced as pain or stiffness, usually in the neck, shoulders, upper arms, and hips, but which may occur all over the body. The pain can be sudden or can occur gradually over a period. Most people with PMR wake up in the morning with pain in their muscles; however, cases ...
Klippel–Trénaunay syndrome, formerly Klippel–Trénaunay–Weber syndrome[1] and sometimes angioosteohypertrophy syndrome and hemangiectatic hypertrophy, [2] is a rare congenital medical condition in which blood vessels and/or lymph vessels fail to form properly. The three main features are nevus flammeus (port-wine stain), venous and ...
Angelman syndrome is a rare, incurable neurogenetic disorder that can cause intellectual disability, speech and balance problems, developmental delays and possible seizures, according to the Mayo ...