Npd vs pd blue veils.JPG

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Name Npd vs pd blue veils.JPG
Label blue white veilBlue-white veil is confluent blue pigmentation with an overlying white “ground-glass” haze. In melanoma, the bluewhite veil does not occupy the entire surface area of the lesion, but rather is present as a focal, ill-defined area. Histopathologically, this dermoscopic structure corresponds to an aggregation of heavily pigmented cells (melanocytes and/or melanophages) or melanin in the dermis (blue color) in combination with compact orthokeratosis under polatized and non polarized dermoscopyThe examination of [skin lesions] with a 'dermatoscope'. This traditionally consists of a magnifier (typically x10), a non-polarised light source, a transparent plate and a liquid medium between the instrument and the skin, and allows inspection of skin lesions unobstructed by skin surface reflections. Modern dermatoscopes dispense with the use of liquid medium and instead use polarised light to cancel out skin surface reflections.
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blue white veil · melanoma · polarized light · non polarized light
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current16:28, 19 July 2018Thumbnail for version as of 16:28, 19 July 2018904 × 449 (88 KB)Ofer Reiter (talk | contribs)
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