Phrase guide
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noun
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.
Definition source: English Wiktionary via Wiktextract
Topics: medicine, pathology, sciences
No example sentence was provided for this meaning.
Synonyms: Casal necklace, Casal's collar, Casal's necklace
Antonyms: none provided
History
Named after Gaspar Casal, who first described pellagra.
