Pellagrous Boot

A term referring to the sharply-demarcated erythema affecting the acral portion of the leg or arm—pellagrous ‘glove’—which is a manifestation of severe niacin deficiency often exacerbated by sun exposure; a vesiculobullous variant of niacin deficiency known as Casal’s necklace occurs in the head and neck
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
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