Chapter 3 Diseases and Conditions Flashcards
abrasion
Scraping or rubbing away of a surface, such as skin, by friction
abscess
localized collection of of pus at the site of an infection (characteristically a staphylococcal infection)
Furuncle
Abscess that originates in the hair follicle; also called a boil
carbuncle
clusters of furuncles in the subcutaneous tissue
acne
Inflammatory disease of sebaceous follicles of the skin, marked by comedos (blackheads), papules, and pustules (small skin lesions filled with purulent material)
alopecia
absence or loss of hair, especially of the head; also known as baldness
burn
tissue injury caused by contact with a thermal, chemical, electrical, or radioactive agent.
first-degree burn (superficial)
Mild burn affecting the epidermis and characterized by redness and pain with no blistering or scar formation.
second-degree burn (partial thickness)
Burn affecting the epidermis and part of the dermis and characterized by redness, blistering, or large bullae, and pain with little or no scaring
third-degree burn (full thickness)
Severe burn characterized by destruction of the epidermis and dermis with damage to the subcutaneous layer, leaving the skin charred black or dry white in appearance with insensitivity to touch.
carcinoma
uncontrolled growth of abnormal cells in the body; also called malignant cells.
melanoma
malignant tumor that originates in melanocytes and is considered the most dangerous type of skin cancer, which, if not treated early, becomes difficult to cure and can be fatal.
comedo
Discolored, dried sebum plugging an excretory duct of the skin; also called blackhead.
cyst
Closed sac or pouch in or under the skin with a definite wall that contains fluid, semi-fluid, or solid material.
pilondial
Growth of hair in a dermoid cyst or in a sinus opening on the skin