ch 5 - skin pathology | CLAS 1030 - Medical Terminology, Quizzes of Medical Sciences

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TERM 1 lesions DEFINITION 1 areas of tissue that have been pathologically altered by injury, wound, or infection described by appearance, color, location, and size measured in centimeters TERM 2 localized lesions DEFINITION 2 affecting tissue over an area of a definite size TERM 3 systemic lesions DEFINITION 3 widely spread throughout the body TERM 4 primary skin lesions DEFINITION 4 initial reaction to pathologically altered tissue and may be flat or elevated TERM 5 secondary skin lesions DEFINITION 5 changes that take place in the primary lesion due to infection, scratching, trauma, or various stages of a disease TERM 6 flat lesions DEFINITION 6 - flat, discolored, circumscribed lesions of any size- ex - macule - primary lesion TERM 7 macule DEFINITION 7 flat, pigmented, circumscribed area less than 1 cm in diameter ex - freckle, flat mole, or rash that occurs in rubella TERM 8 solid elevated lesions DEFINITION 8 - type of primary lesion - papule, nodule, tumor, wheal TERM 9 fluid-filled elevated lesions DEFINITION 9 - primary lesions - vesicle, pustule, bulla TERM 10 papule DEFINITION 10 solid, elevated lesion less than 1 cm in diameter that may be the same color as the skin or pigmented ex - nevus, wart, pimple, ringworm, psoriasis, eczema TERM 21 burns DEFINITION 21 tissue injuries caused by contact with thermal, chemical, electrical or radioactive agents TERM 22 first-degree (superficial) burns DEFINITION 22 least serious type of burn because they injure only the top layers of the skin, the epidermis most often caused by brief contact with either dry or moist heat (thermal burn), spending too much time in the sun (sunburn), or exposure to chemicals injury is restricted to local effects, such as skin redness (erythema) and acute sensitivity to sensory stimuli (hyperesthesia), such as touch, heat, or cold usually blisters do not form and burn heals without scar formation TERM 23 second-degree (partial-thickness) burns DEFINITION 23 deep burns that damage both the epidermis and part of the dermis may be caused by contact with flames, hot liquids, or chemicals. symptoms mimic those of first-degree burns, but fluid- filled blisters (vesicles or bullae) form and burn may heal with little or no scarring TERM 24 third-degree (full-thickness) burns DEFINITION 24 epidermis and dermis are destroyed and some of underlying connective tissue is damaged, leaving skin waxy and charred with insensitivity to touch underlying bones, muscles, and tendons may be damaged may be caused by corrosive chemicals, flames, electricity, or extremely hot objects, immersion of the body in extremely hot water, or clothing that catches fire ulcerating wounds develop and body attempts to heal by forming scar tissue skin grafting (dermatoplasty) may be needed TERM 25 Rule of Nines DEFINITION 25 method of evaluating the amount of burn area on a patient TERM 26 neoplasms DEFINITION 26 abnormal growths of new tissue that are classified as benign or malignant TERM 27 benign neoplasms DEFINITION 27 noncancerous growths composed of the same type of cells as the tissue in which they are growing harm individual only in so far as they place pressure on surrounding structures if it stays small and places no pressure on adjacent structures it is usually not removed if it becomes excessively large, causes pain, or places pressure on other organs or structures, excision is needed TERM 28 malignant neoplasms DEFINITION 28 cells that are invasive and spread to remote regions of the body cells show altered function, altered appearance, and uncontrolled growth and invade surrounding tissue so some malignant cells may enter blood and lymph vessels and travel to remote regions of the body to form secondary tumor sites (metastasis) TERM 29 cancer DEFINITION 29 presence of a malignant growth (tumor) TERM 30 cancer treatments DEFINITION 30 surgery, chemotherapy, immunotherapy, and radiation therapy TERM 31 immunotherapy (biotherapy) DEFINITION 31 treatment that stimulates the body's own immune defenses to fight tumor cells TERM 32 TNM system DEFINITION 32 tumor, node, metastasis system of identifying the invasiveness of a malignant tumor T - size and invasiveness of the primary tumorN-nodal involvementM-spreading to the primary tumor to remote regions of the body (metastasis) TERM 33 basal cell carcinoma DEFINITION 33 most common type of skin cancer malignancy of the basal layer of the epidermis or hair follicles commonly caused by overexposure to sunlight locally invasive, but rarely metastasize TERM 34 squamous cell carcinoma DEFINITION 34 arises from skin that undergoes pathological hardening/keratinizing of epidermal cells invasive tumor with potential for metastasis in situ - confined to the original site invasive - penetrate the surrounding tissue TERM 35 malignant melanoma DEFINITION 35 neoplasm composed of abnormal melanocytes that commonly begin in a darkly pigmented mole