Wood lamp is a kind of ultraviolet lamp. Vitiligo is checked by radiation. Under the irradiation of wooden lamp, the white spot of vitiligo will reflect pure white fluorescence, which is black and white compared with normal skin, and the boundary is clearly visible. Even the white spots that were not obvious in the early days can be clearly seen under the wooden lamp. The distribution of white spots on the skin surface was observed with wooden lamps, and hidden vitiligo was found.
Three-dimensional skin CT is an instrument to check and determine the abnormality of vitiligo. Using computerized tomography, we can deeply and intuitively see the skin basal layer of patients with leukoplakia, understand the damage of melanocytes, and observe the distribution range and size of leukoplakia without making skin sections. In this way, we can have a deeper and more comprehensive understanding of vitiligo and provide a basis for users to choose the appropriate method.
Extended data:
Precautions for skin examination:
1. Before abdominal examination, other contrast examinations can't be done, especially barium can't be used for gastrointestinal radiography, so as to avoid artifacts caused by the residual contrast agent in the intestine, which will affect the quality of ct images and lead to misdiagnosis.
2, before the liver, gallbladder, pancreas examination, to do a variety of laboratory tests, according to the abdominal plain film, cholangiography and ultrasound examination.
3. Pyelography and B-ultrasound should be done before renal examination.
4, before the chest examination, should according to the chest plain film and tomography.
5. Before the spinal examination, the front and oblique photos of the spine should be taken.
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Baidu encyclopedia -3 d skin CT