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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 ]
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]
As of 2024, there are total of 251 known "stable" nuclides. In this definition, "stable" means a nuclide that has never been observed to decay against the natural background. Thus, these elements have half-lives too long to be measured by any means, direct or indirect. Stable isotopes: 1 element has 10 stable isotopes
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.
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.
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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 ...
The war in Ukraine, along with climate change and post-pandemic global poverty, have been the focus of the annual event this year that included an in-person address by Ukrainian President ...