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Integumentary System

Disease and Conditions

TermDefinition
abscess localized collection of pus at the site of an infection (characteristically a staphylococcal infection)
acne inflammatory disease of the sebaceous glands and hair follicles of the skin with characteristic lesions that include blackheads (comedos), inflammatory papules, pustules, nodules, and cysts. Usually associated w/ seborrhea; also called acne vulgaris
alopecia partial or complete loss of hair resulting from normal aging, an endocrine disorder, a drug reaction, anticancer medication, or a skin disease; commonly called baldness
Bowen disease form of intraepidermal carcinoma (squamous cell) characterized by red-brown scaly or crusted lesions that resemble a patch of psoriasis or dermatitis; also called Bowen precancerous dermatosis
cellulitis diffuse (widespread), acute infection of the skin and subcutaneous tissue
chloasma pigmentary skin discoloration usually occurring in yellowish brown patches or spots
comedo typical small skin lesion of acne vulgaris caused by accumulation of keratin, bacteria, and dried sebum plugging an excretory duct of the skin
dermatomycosis infection of the skin caused by fungi
ecchymosis skin discoloration consisting of large, irregularly formed hemorrhagic area with colors changing from blue-black to greenish brown or yellow; commonly called a bruise
eczema chronic inflammatory skin condition that is characterized by erythema, papules, vesicles, pustules, scales, crusts, and scabs and accompanied by intense itching (pruritis); also called atopic dermatitis
erythema redness of the skin caused by swelling of the capillaries
eschar dead matter that is sloughed off from the surface of the skin, especially after a burn
impetigo bacterial skin infection characterized by isolated skin pustules that become crusted and rupture
keratosis thickened area of the epidermis or any horny growth on the skin (such as a callus or wart)
lentigo small brown macules, especially on the face and arms, brought on by sun exposure, usually in middle-aged or older person
pallor unnatural paleness or absence of color in the skin
pediculosis infestation with lice, transmitted by personal contact or common use of brushes, combs, or headgear
petechia minute, pinpoint hemorrhage under the skin
pressure ulcer inflammation, sore, or skin deterioration caused by prolonged pressure from lying in one position that prevents blood flow to the tissues, usually in elderly bedridden persons; also known as decubitus ulcer
pruritus intense itching
psoriasis chronic skin disease characterized by circumscribed red patches covered by thick, dry, silvery, adherent scales and caused by excessive development of the basal layer of the epidermis
purpura any of several bleeding disorders characterized by hemorrhage into the tissues, particularly beneath the skin or mucous membranes, producing eccymoses or petechiae
scabies contagious skin disease transmitted by the itch mite, commonly through sexual contact
tinea fungal skin infection whose name commonly indicates the body part affected; also called ringworm
urticaria allergic reaction of the skin characterized by the eruption of pale red, elevated patches called wheals or hives
verruca epidermal growth caused by a virus; also known as warts. Types include plantar warts, juvenile warts, and venereal warts.
vitiligo localized loss of skin pigmentation characterized by milk-white patches