Casal collar

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English

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English Wikipedia has an article on:
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Etymology

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Named after Gaspar Casal, who first described pellagra.

Noun

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Casal collar (plural Casal collars)

  1. (pathology) The presence of an erythematous pigmented skin rash in the distribution of a broad collar, seen in patients with pellagra as a result of niacin deficiency.
    Synonyms: Casal necklace, Casal's collar, Casal's necklace
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