Burns and Other Skin Lesions
Classification
First Degree Burn: Epidermis only
First Degree Burn
Second Degree Burn
Second Degree Burn: Epidermis and upper layers of the dermis
Second Degree Burn
Second-Degree Burns
Third Degree Burn: Complete destruction of the epidermis & dermis
Estimating percentages
Regeneration
Regeneration/Scarring
Scar Occurs whenever wound/ulcer has occurred; reflects healing Keloid: Abnl formation of CT; form w/ dermal tissue damage; initially are thick but may w/ time become white and atrophic
Skin graft donor site: about halfway through the initial healing stage
Papule Firm, raised lesion (less than 1cm in diameter)
Papule
Plaque Large, raised lesion (greater than 1 cm in diameter)
Plaque - Psoriasis
Vesicle Thin-walled blister filled w/ fluid, <1cm Between Epi/Derm junction or within dermis Clinically significant
Vesicle
Pustule Elevated lesion filled w/ pus
Pustule
Crust Hardened deposits of serum and cellular debris result when serum, blood, or purulent (pus) exudates dries on skin surface “scab”
Wheal Firm, raised area of irregular shape/light center
Wheal
Cyst Nodule that contains fluid or semisolid material
Macule Distinguished from surrounding skin by color
Macule
Abrasion Epidermis removed, revealing dermis
Excoriation Epidermis is missing, dermis is exposed Linear “scratch”
Ulcer Craterlike lesion caused by disintegration of the skin (epidermis and dermis) Heals w/ scarring
Bed Sore Compression of skin between bony prominence and other surface Cuts off circulation leads to necrosis of tissue - Lack of blood supply prevents proper healing promotes infection
Fissure Linear crack or break from epidermis to dermis