Half-and-half

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Half-and-half is a term used in the medical field, particularly in the context of neurology, to describe a specific type of nail discoloration. This condition is also known as Lindsay's nails or Lindsay's sign.

Pronunciation

Half-and-half: /ˈhæf ən(d) ˈhæf/

Etymology

The term "half-and-half" is derived from the appearance of the nails in this condition, where half of the nail appears white or pale, and the other half appears red or brown.

Description

In half-and-half nails, the proximal portion of the nail (the part closest to the hand) is white or pale, while the distal portion (the part furthest from the hand) is red or brown. This condition is often associated with renal disease, particularly chronic kidney disease (CKD). However, it can also be seen in patients with liver disease, malnutrition, or HIV/AIDS.

Related Terms

  • Beau's lines: Horizontal ridges on the nails often associated with systemic illness.
  • Muehrcke's lines: Paired white bands running across the nails horizontally, often associated with low protein levels in the blood.
  • Terry's nails: Mostly white nails with a narrow pink band at the tip, often associated with liver disease, congestive heart failure, or diabetes.

See Also

External links

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