411 REFERENCE · Wiktionary
Casal collar
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Etymology
Named after Gaspar Casal, who first described pellagra.
Noun
en 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.
en Casal necklace Casal's collar Casal's necklace
en eponyms