Macule
Change in the color of the skin.
Papule
a small circumscribed, superficial, solid elevation of the skin less than 1 cm (0.5 cm according to some authorities) in diameter.
Nodule
Is a raised solid lesion in any part of skin
Tumor
Is a solid mass of the skin or subcutaneous tissue
Vesicle
Is a small raised lesion filled with fluid
Pustule
Pus filled raised lesion
Wheal
Is an area filled with fluid in the epidermis
Burrow
Long lesions produced by parasites forming tunnels under the skin
Keloids
Lesions due to excessive scar tissue forming in response to an injury
Petechiae and Ecchymoses
Lesions due to bleeding under the skin. Petechiae are tiny bleeds - pinpoint to pinhead size; ecchymoses (bruises) are bleeds larger than 3mm, purpa (bleeding into the skin)
alopecia
baldness
pruritus
itching
urticaria
also hives; an acute allergic reaction in which round wheals (welts) develop on the skin, usually accompanied by intense itching
acne
inflammatory papular and pustular eruption of the skin
cellulitis
an inflammation of body tissue (especially that below the skin) characterized by fever and swelling and redness and pain
eczema
inflammatory skin disease with erythematous, papulovesicular lesions (rash)
exanthematous viral disease
rash (exanthem) of the skin due to a viral infection
gangrene
death of tissue associated with loss of blood supply
impetigo
highly contagious, bacterial skin inflammation marked by pustules that rupture and become crusted around mouth and nose
psoriasis
chronic, recurrent dermatosis marked by itchy, scaly, red plaques covered by silvery gray scales
scabies
contagious, parasitic infection of the skin with intense itching
scleroderma
a chronic progressive disease of the skin with hardening and shrinking of connective tissue.
systemic lupus erythematosus (SLE)
chronic autoimmune inflammatory disease of collagen in the skin, of joints, and of internal organs
tinea
infection of the skin caused by a fungus; tinea corporis (ringworm); tinea pedis (athlete's foot); tinea unguium (nails)
vitiligo AKA leukoderma
loss of pigment; white, patchy areas
callus
increased growth of cells in the keratin layer of the epidermis caused by pressure or friction
keratosis
Thickened and reddened area of the epidermis, usually associated with aging or skin damage.
leukoplakia
white, thickened patches on mucous membrane tissue of the tongue or cheek
nevus, nevi
pigmented lesion of the skin
verruca
epidermal growth (wart) caused by a virus
Kaposi sarcoma
malignant vascular tumor (HHV8 in homosexual men); AIDS associated
cryosurgery
use of subfreezing temperature via liquid nitrogen application to destroy tissue
Mohs mircographic surgery
used to treat basal cell; thin layers of tissue removed