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In addition to cases caused by heredity, physical injury, the transverse nasal crease is common in children and adults with chronic nasal allergies. People with allergies often use their hands to remove mucus from a runny nose or rub an itchy nose. As the hand slides upward, the tip of the nose is
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The appearance of the line depends on skin pigmentation. On lighter-skinned people, the transverse nasal crease is lighter in color than the surrounding skin, and may appear white. This is due to
68:(slightly above the cartilage tip between the bridge and nostrils). It can occur as the result of heredity, accident, or the constant rubbing or wiping of the nose, commonly referred to as the
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present in the damaged skin. In darker-skinned people, the line may appear darker than the surrounding skin.
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Shelley, W.B.; Shelley, E.D.; Pansky, B. (1997). "The transverse nasal line: An embryonic fault line".
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Cartilage and skin of the nose may become damaged when the nose is repeatedly creased due to the
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is a usually white line between the upper two-thirds and the lower third of the
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Ramot, Yuval; Maly, Alex; Zlotogorski, Abraham; Nanova, Krassimira (2010).
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Line between upper 2/3 & lower 1/3 of the human nose
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159:"Atypical 'allergic crease'"
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37:. Side view.
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