Dermatosis (plural dermatoses), a noun, is defined as "any disease of the skin,"Random House Webster's Unabridged Dictionary. Random House, Inc. 2001. Page 537. ISBN 037572026.James, William; Berger, Timothy; Elston, Dirk (2005). Andrews' Diseases of the Skin: Clinical Dermatology (10th ed.). Saunders. ISBN 0721629210.Marks, James G; Miller, Jeffery (2006). Lookingbill and Marks' Principles of Dermatology (4th ed.). Elsevier Inc. ISBN 1-4160-3185-5. and, while thousands of skin disorders have been described, only a small number account for most visits to the doctor.Marks, James G; Miller, Jeffery (2006). Lookingbill and Marks' Principles of Dermatology (4th ed.). Elsevier Inc. Page 3. ISBN 1-4160-3185-5. Uncommon presentations of common diseases are common.