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Mees' lines can look similar to injury to the nail, which should not be confused with true Mees' lines. [1] Mees' lines appear after an episode of poisoning with arsenic, [2] thallium or other heavy metals or selenium, [3] opioid MT-45, and can also appear if the subject is suffering from kidney failure. [4] They have been observed in ...
Leukonychia striata, transverse leukonychia, or Mees' lines are a whitening or discoloration of the nail in bands or "stria" that run parallel to the lunula (nail base). This is commonly caused by physical injury or disruption of the nail matrix.
Experts say the discoloration is most commonly due to injury and is usually not a major cause for concern. However, certain conditions may be associated with white spots or lines on the nail, such as:
Muehrcke's lines were described by American physician Robert C. Muehrcke (1921–2003) in 1956. In a study published in BMJ, he examined patients with known chronic hypoalbuminemia and healthy volunteers, finding that the appearance of multiple transverse white lines was a highly specific marker for low serum albumin (no subject with the sign had SA over 2.2 g/dL), was associated with severity ...
"Trauma could cause white spots on the nails or even white lines (leukonychia)," says Dr. Mendeszoon. "Bumping one’s toe or being stepped upon may cause injury to the nail plate and dermis ...
White lines across the nail (leukonychia striata, or transverse leukonychia) may be Mees' lines or Muehrcke's lines. Small white patches are known as leukonychia punctata. Dark nails are associated with B 12 deficiency. Stains of the nail plate (not the nail bed) are associated with smoking and henna use.
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The condition is thought to be due to a decrease in vascularity and an increase in connective tissue within the nail bed; [3] the darker shade of the distal portion of the nail fades upon pressure, which differentiates Terry's nails from Lindsay's nails.