Koebner Phenomenon

Raynaud's Phenomenon by Jay D. Coffman,

Raynaud's phenomenon is the occurrence of episodic attacks of well demarcated blanching or cyanosis of one or more digits on exposure to the cold. However, when the phenomenon is due to an underlying disease, there may be multiple episodes of painful digital ulcerations or gangrene koebner phenomenon and systemic involvement affecting the length of life.
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Physical phenomenon - A physical phenomenon is a phenomenon that is describable by physics and involved with some form of matter, energy, or spacetime. Physical phenomena are usually regarded as, at least in theory, subjects of observation - Niels Bohr, one of the fathers of quantum mechanics, is quoted with saying " ...

Color Phi phenomenon - The Color Phi phenomenon is a perceptual illusion described by psychologists Paul Kolers and Michael von Grunau in which a disembodied perception of motion is produced by a succession of still images. The Color Phi phenomenon is a more complex variation of the Phi phenomenon.

Blue field entoptic phenomenon - The blue field entoptic phenomenon or Scheerer's phenomenon is the appearance of tiny bright dots moving quickly along squiggly lines in the visual field, especially when looking into blue light (such as the sky).

Anomalous phenomenon - An anomalous phenomenon is an observed phenomenon for which there is no agreeable rational explanation. Because such observations don't fit into the established framework or consensus reality, they can be the subject of controversy.

Koebner Phenomenon

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