Skin (Los Angeles). Mar; PLANTAR CLAVUS (HELOMA DURUM) AS A REACTION TO A PENETRATING HAIR. GOLDMAN L, MORAITES RS. Clavi may be further classified as a hard clavus (heloma durum) or a soft clavus The key differential diagnosis of a clavus is a verruca vulgaris, particularly a . Needling vs Nonsurgical Debridement in Plantar Verrucae: Which is Best?. Clavus is distinguished from plantar warts, which are caused by human papilloma virus and tend to occur multiply. Plantar warts also occur in areas that are not.

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Special care must be taken to be sure the patient does not have diabetes mellitus or peripheral vascular disease in the relevant area.

J Med Assoc Thai. Shahk, R, Tiwari, RR.

Clavi may be further classified as a hard clavus heloma durum or a soft clavus heloma mole. Articles needing additional references from July All articles needing additional references Infobox medical condition new All articles with unsourced statements Articles with unsourced statements from November Content is updated monthly with systematic literature reviews and conferences.

Calluses in specific sites often have vernacular names plantqr noted in Table I. Soft clavi are seen on more moist areas, such as between the toes. Unsourced material may be challenged and removed. What is the Cause of the Disease? Corns and calluses are extremely common and affect most of the population at one time or another.


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Corn (medicine)

There may be mucin deposition in the dermis, hemorrhage around blood vessels, streaking of collagen on the sides of the plaantar papillae. Dermal blood vessels are more likely to be damaged than those underlying a callus.

Callus shows a markedly dense, usually orthokeratotic plantzr corneum underlain by mild acathosis, variable hypergranulosis, and increased collagenization of the superficial dermis. This article needs additional citations for verification. Prognosis is excellent if proper management is instituted and followed.


If the source of any abnormal pressure is detected, this may be planfar, usually through a change to more comfortable footwear or with various types of shoe inserts or footwear with extra toe space.

Powered By Decision Support in Medicine. The corn’s center is not soft, however, but indurated.

These images are a random sampling from a Bing search on the term “Corns. Calluses occur in numerous sites depending on pressure exerted on that site. Hard corns occur on dry, flat surfaces of skin.


An example is a nail in ones shoe extending above the sole. Corns show a very dense collagen plug surrounded by epidermis with the changes noted above. Corns clavi are very clauvs demarcated and usually are less than 1. From Wikipedia, the free encyclopedia. Because of their shape, corns intensify the pressure at the tip and can cause deep tissue damage and ulceration.

Corn (medicine) – Wikipedia

This page was last edited on 17 Clacusat Such calluses may also cause pain and dysfunction, however, depending on the exact site, size and shape. Views Read Edit View history.

Search Bing for all related images. To exclude other differential diagnosesa skin biopsy may be taken. The location of soft corns tends to differ from that of hard corns. The scientific name for a corn is heloma plural helomata.