Arcus senilis
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| Arcus senilis Classification and external resources | ||
| ICD-10 | H18.4 | |
|---|---|---|
| ICD-9 | 371.41 | |
| OMIM | 107800 | |
| DiseasesDB | 17120 | |
| MeSH | C11.204.299.070 | |
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Overview
Arcus (ar·cus) (ahr´kəs) pl. ar´cus [L. “a bow”] [TA] arch: a general term used in anatomical nomenclature to designate any structure having a curved or bowlike outline.
A. cor´neae , A. cornea´lis or Arcus senilis (or Arcus senilis corneae) is a white or gray opaque ring in the corneal margin peripheral (corneal) opacity, present at birth, or appearing later in life, and becoming quite frequent in those over 50; it results from cholesterol deposits in or hyalinosis of the corneal stroma and may be associated with ocular defects or with familial hyperlipidemia.
Also called A. adiposus, A. juvenilis (When it occurs in younger individuals), A. lipoides corneae, and A. senilis.
It is most often found in the elderly, hence the name.
It can be a sign of disturbance in lipid metabolism, an indicator of conditions such as hypercholesterolemia, hyperlipoproteinemia or hyperlipidemia.
A unilateral arcus is a sign of carotid artery disease or ocular hypotony.
External links
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Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
