Symptoms and Signs in Dermatology

From Wikibooks, open books for an open world
Jump to: navigation, search

An understanding of the basic lesions that occur on the skin is essential to the discipline of dermatology. Lesions are divided into the general categories of primary and secondary. Primary lesions are those that are directly associated with the disease process and usually appear early in the course of the disease. Those appearing later are called secondary lesions and may be a result of the ongoing disease process and changes to the primary lesions. Secondary lesions are often the result of manipulation by the patient (rubbing, scratching, etc.) or the result of treatments applied to the skin after the process began. An ulceration could be primary (the disease process) or secondary (result of scratching).

A morphological classification of dermatological lesions is most helpful to the identification of the diseases present.

Primary Lesions

Secondary Lesions

Medical Disclaimer

Wikibooks contains books on many medical topics; however, no warranty whatsoever is made that any of the books are accurate. There is absolutely no assurance that any statement contained or cited in a book touching on medical matters is true, correct, precise, or up-to-date. The overwhelming majority of such books are written, in part or in whole, by nonprofessionals. Even if a statement made about medicine is accurate, it may not apply to you or your symptoms.

The medical information provided on Wikibooks is, at best, of a general nature and cannot substitute for the advice of a medical professional (for instance, a qualified doctor/physician, nurse, pharmacist/chemist, and so on). Wikibooks is not a doctor.

None of the individual contributors, system operators, developers, sponsors of Wikibooks nor anyone else connected to Wikibooks can take any responsibility for the results or consequences of any attempt to use or adopt any of the information presented on this web site.

Nothing on Wikibooks.org or included as part of any project of Wikimedia Foundation Inc., should be construed as an attempt to offer or render a medical opinion or otherwise engage in the practice of medicine.