Editing Skin condition (section)

=== Secondary lesions ===
* '''Scale''': Dry or greasy laminated masses of [[keratin]],<ref name="Andrews" /> they represent thickened stratum corneum.<ref name="isbn0-7216-8256-1" />
* '''Crust''': Dried [[Sebaceous gland#Sebum|sebum]] usually mixed with epithelial and sometimes bacterial debris<ref name="FitzAtlas"/>
* '''[[Lichenification]]''': Epidermal thickening characterized by visible and palpable thickening of the skin with accentuated skin markings<ref name="Lookingbill" />
* '''Erosion''': An erosion is a discontinuity of the skin exhibiting incomplete loss of the [[epidermis (skin)|epidermis]],<ref name="isbn0-7216-0187-1">{{cite book|title=Robbins and Cotran pathologic basis of disease | vauthors= Cotran RS, Kumar V, Fausto N, Robbins SL, Abbas AK |publisher=Elsevier Saunders|year=2005|isbn=0-7216-0187-1|location=St. Louis, Mo}}</ref> a lesion that is moist, circumscribed, and usually depressed.<ref name="Fitz" /><ref name=":0">{{Cite web |url= https://basicmedicalkey.com/alterations-in-the-integumentary-system/ |title=Alterations in the Integumentary System| vauthors = Copstead LE, Diestelmeier RE, Diestelmeier MR |date=2016-09-03|website=Basicmedical Key|language=en-US|access-date=2019-07-01}}</ref>
* '''Excoriation''': A punctate or linear [[Abrasion (medical)|abrasion]] produced by mechanical means (often scratching), usually involving only the epidermis, but commonly reaching the [[papillary dermis]].<ref name="Andrews" /><ref name=":0" />
* '''[[Ulcer (dermatology)|Ulcer]]''': An ulcer is a discontinuity of the skin exhibiting complete loss of the epidermis and often portions of the dermis.<ref name="isbn0-7216-0187-1" /><ref name=":0" />
* '''[[Skin fissure|Fissure]]''' is a lesion in the skin that is usually narrow but deep.<ref name="isbn0-7216-8256-1" /><ref name=":0" />
* {{anchor|Induration}}'''Induration''' is dermal thickening causing the cutaneous surface to feel thicker and firmer.<ref name="isbn0-7216-8256-1" />
* '''Atrophy''' refers to a loss of skin, and can be epidermal, dermal, or subcutaneous.<ref name="Andrews" /> With epidermal atrophy, the skin appears thin, translucent, and wrinkled.<ref name="isbn0-7216-8256-1" /> Dermal or subcutaneous atrophy is represented by depression of the skin.<ref name="isbn0-7216-8256-1" />
* '''[[Skin maceration|Maceration]]''': softening and turning white of the skin due to being consistently wet.
* {{anchor|Umbilication}}'''Umbilication''' is formation of a depression at the top of a papule, vesicle, or pustule.<ref>{{cite web | vauthors = Benedetti J | date = December 2021 |title=Description of Skin Lesions|url=http://www.merckmanuals.com/professional/dermatologic_disorders/approach_to_the_dermatologic_patient/description_of_skin_lesions.html|publisher=The Merck Manual|access-date=3 June 2013}}</ref>
* '''[[wikt:phyma#noun|Phyma]]''': A [[tubercle]] on any external part of the body, such as in [[rosacea#Classification|phymatous rosacea]]