Stephen J. Schueler, M.D.

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Fungus Ringworm Anatomy

To better understand tinea corporis, it helps to understand the anatomy of the skin.

The skin contains three main layers:

  • Epidermis:
    • The superficial layer that makes up the surface of the skin
    • It is composed of skin cells and can be divided into 5 layers based on cell type.
    • The top layer of the epidermis, the stratum corneum, is made of dead, flat skin cells that shed about every 2 weeks.
    • The thickness of the epidermis varies, according to location: it is very thick over the soles of the feet, and very thin over the ears.
  • Dermis:
    • Lies beneath the epidermis
    • Also varies in thickness depending on the location of the skin. It is .3 mm on the eyelid and 3.0 mm on the back.
    • The dermis is composed of 2 layers that contain a connective tissue called collagen
    • The dermis contains blood vessels, nerves, sweat glands, and hair follicles.
    • The number of structures in the dermis varies, according to location.
    • The dermis under the arms contains more sweat glands and hair follicles than the dermis on the back.
  • Subcutaneous layer:
    • Mainly fat and connective tissue.
    • Contains blood vessels and nerves.

Last Updated: Jan 6, 2011 References
Authors: Stephen J. Schueler, MD; John H. Beckett, MD; D. Scott Gettings, MD
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PubMed Fungus Ringworm References
  1. Budimulja U, Bramono K, Urip KS, Basuki S, Widodo G, Rapatz G, Paul C. Once daily treatment with terbinafine 1% cream (Lamisil) for one week is effective in the treatment of tinea corporis and cruris. A placebo-controlled study. Mycoses. 2001;44(7-8):300-6. [11714065]
  2. Gupta AK, Chaudhry M, Elewski B. Tinea corporis, tinea cruris, tinea nigra, and piedra. Dermatol Clin. 2003 Jul;21(3):395-400, v. [12956194]
  3. Sanmano B, Hiruma M, Mizoguchi M, Ogawa H. Abbreviated oral itraconazole therapy for tinea corporis and tinea cruris. Mycoses. 2003 Sep;46(8):316-21. [12950901]
  4. Stary A, Sarnow E. Fluconazole in the treatment of tinea corporis and tinea cruris. Dermatology. 1998;196(2):237-41. [9568414]
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