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Drawing of sclerotic lesions from Babinski's thesis "Etude anatomique et clinique de la sclérose en plaques", 1885. Multiple sclerosis (MS) can be pathologically defined as the presence of distributed glial scars in the central nervous system that must show dissemination in time (DIT) and in space (DIS) to be considered MS lesions. [1] [2]
These defense mechanisms include the formation of sclerotic and tertiary dentin. [ 80 ] In dentin from the deepest layer to the enamel, the distinct areas affected by caries are the advancing front, the zone of bacterial penetration, and the zone of destruction. [ 76 ]
This could indicate that some number of lesions exist, below which the brain is capable of repairing itself without producing noticeable consequences. [1] Another process involved in the creation of lesions is an abnormal increase in the number of astrocytes due to the destruction of nearby neurons. [1] A number of lesion patterns have been ...
Inflammatory demyelinating diseases (IDDs), sometimes called Idiopathic (IIDDs) due to the unknown etiology of some of them, are a heterogenous group of demyelinating diseases - conditions that cause damage to myelin, the protective sheath of nerve fibers - that occur against the background of an acute or chronic inflammatory process.
Also acid ionization constant or acidity constant. A quantitative measure of the strength of an acid in solution expressed as an equilibrium constant for a chemical dissociation reaction in the context of acid-base reactions. It is often given as its base-10 cologarithm, p K a. acid–base extraction A chemical reaction in which chemical species are separated from other acids and bases. acid ...
Sclerotic piecemeal necrosis of the tip of the thumb in a patient with scleroderma.. Piecemeal necrosis generally refers to a necrosis that occurs in fragments.. Piecemeal necrosis in liver aka interface hepatitis is necrosis of the limiting plates, by inflammatory cells.
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This treatment cannot reverse conductive hearing loss, but may slow the progression of both the conductive and sensorineural components of the disease process. Otofluor, containing sodium fluoride, is one treatment. Recently, some success has been claimed with a second such treatment, bisphosphonate medications that inhibit bone destruction.