Casal collar
Appearance
The Casal collar or Casal necklace is a clinical sign in which there is an erythematous pigmented skin rash in the distribution of a broad collar (dermatomes C3 and C4). It is seen in patients with pellagra.[1]
The sign is named after Gaspar Casal.
References
- ^ Barry G. Firkin, Judith A. Whitworth. Dictionary of Medical Eponyms. Informa Health Care, 2001, page 60. ISBN 978-1-85070-333-4.
External links
- Image of Casal collar at phoenity.com Accessed on 22 March 2009.