Integumentary Misc. Terms Flashcards
Secondary Skin lesions
Changes that take place in the primary lesions due to infection, scratching, trauma, or various stages of a disease
Primary skin Lesions
initial reaction to pathologically altered tissue
erythema
skin redness
hyperesthesia
acute sensitivity to sensory stimuli
second degree (partial thickness) burns
similar to first degree but blisters form (vesicles or bullae); may heal with little or no scarring
third degree (full thickness) burns
epidermis and dermis destroyed, underlying connective tissue is damaged.
neoplasm
abnormal growths of new tissue classified as either benign or malignant
immunotherapy (biotherapy)
a recent treatment that stimulates the body’s own immune defenses to fight tumor cells.
tumor, node, metastasis (TNM) system of cancer staging
T-size and invasivness of primary tumor
N-node involvement
M-spreading of the primary tumor to remote regions of the body
Basal cell carcinoma
rarely metastasize
overexposure to sunlight
most common skin cancer
Malignancy of the basal layer of the epidermis
squamous cell carcinoma
arises from skin that undergoes pathological hardening (keratinizing) of epidermal cells
Two types: in situ (confined to original site) and invasive
Predisposing factors:
-fair skinned white men over 60
-repeated overexposure to sun
-radiation therapy
-chronic skin inflammation
-exposure to carcinogens
-hereditary diseases (xeroderma and albinism)
-premalignant lesions (actinic keratosis or Bowen’s disease)
Malignant Melanoma
commonly begins in a darkly pigmented mole
- rare, but is rising more rapidly than any other malignancy
- can metastasize to liver, lungs, or brain
- at greatest risk are people with fair complexions, blue eyes, red or blonde hair, and freckles
