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MA CH14 H1E
| Term | Definition |
|---|---|
| dilate | to widen. |
| constrict | to narrow. |
| acute | as related to illness, short-term and requiring immediate care. |
| etiology | the origin, or cause, of a disease or condition. |
| dermatologist | a physician who diagnoses and treats conditions of the integumentary system. |
| macule | a flat area on the skin that is different in color from the rest of the skin. |
| papule | a small, solid raised area on the skin with a diameter smaller than 0.5 centimeters. |
| nodule | a large, solid raised area on the skin larger than 1 centimeter. |
| scale | a skin lesion caused by the accumulation of extra epithelial (skin) cells on the epidermis; silver to white in color. |
| plaque | a flat skin lesion with a scaly appearance. |
| vesicle | a raised area on the skin smaller than 1 centimeter and filled with clear fluid. |
| bulla | a raised area on the skin larger than 1 centimeter that is filled with clear fluid. |
| pustule | a raised area on the skin filled with a yellowish-white fluid called pus. |
| wheal | a reddened area on the skin that may or may not be raised; indication of an allergic reaction; also called a hive. |
| crust | an accumulation of dried blood and fluid that forms over an injury to the skin; commonly called a scab. |
| keloid | an abnormal growth that forms over scar tissue after an injury. |
| erosion | in health care, an open area in the skin where the top layer of the epidermis has been removed due to friction or pressure. |
| excoriation | in health care, a scratch on the skin. |
| ulcer | as relates to the integumentary system, a wound in the skin that extends into the dermis. |
| petechiae | pin-sized red spots on the skin. |
| purpura | a reddish-purple lesion on the skin. |
| ecchymosis | a large, flat, purple to bluish bruise on the skin; caused by trauma or a bleeding disorder. |
| dermatitis | a general term that refers to an inflammation, or redness/discoloration and swelling, of the skin. |
| inflammation | redness/discoloration and swelling. |
| varicose veins | enlarged veins that cause blood to pool in the legs. |
| autoimmune condition | a condition in which the body’s immune system attacks normal tissue in the body. |
| fungus | a type of living organism that can sometimes cause infection; Candida is a common example. |
| pediculosis | an infestation of lice. |
| scabies | a skin infection caused by a mite called Sarcoptes scabiei. |
| impetigo | a mild skin infection caused by either streptococci or staphylococci. |
| cellulitis | a bacterial infection affecting the skin and soft tissue. |
| Methicillin-resistant Staphylococcus aureus (MRSA) | bacteria (Staphylococcus aureus) that have developed resistance to the antibiotic methicillin. |
| malaise | a general sense of feeling unwell. |
| excise | to surgically remove. |
| shingles | a skin rash caused by the varicella-zoster virus (VZV) that causes pain, tingling, itching, and a rash of blood-filled blisters. |
| rosacea | a skin condition caused by the dilation of capillaries on the face; causes facial redness and f lushing. |
| acne vulgaris | skin condition caused by inflammation of the sebaceous glands and skin follicles; can result in pimples, blackheads, and whiteheads. |
| cancer | a general term to describe a disease in which abnormal cells grow in an uncontrolled way. |
| basal cell carcinoma (BCC) | the most common form of skin cancer, affecting the basal cells of the epidermis; usually appears in areas that have been exposed to the sun. |
| squamous cell carcinoma (SCC) | a form of skin cancer occurring in the squamous cells on the outer surface of the epidermis; less common but more likely to spread than basal cell carcinoma. |
| malignant melanoma | the most dangerous type of skin cancer, appearing in the melanocytes (cells that produce melanin); can spread quickly to surrounding tissues and organs. |
| metastasize | to spread from one part of the body to another. |
| wound | a type of injury to the skin. |
| self-limiting | in medicine, capable of healing without treatment. |
| dermatoscope | a circular lens that magnifies skin lesions for closer inspection. |
| Wood’s light | a lamp used in a darkened room to illuminate skin abnormalities using ultraviolet (UV) light. |
| protein | a nutrient essential for tissue growth and repair; also supplies energy for the body. |
| fat | a type of nutrient that helps the body store energy; fats also add flavor to food and are important for the absorption of certain vitamins. |
Created by:
cvis
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