Pathology of the Integumentary System Flashcards
comedo
noninfected lesion formed by the buildup of sebum and keratin in a hair follicle
seborrhea
overactivity of the sebaceous glands that results in overproduction of sebum
diaphoresis
profuse sweating, can be normal with heat or exertion but can also be caused by emotional or physical distress
folliculitis
inflammation of the hair follicles, common on the arms, legs and in the beard area of men
hirsutism
presence of excessive body and facial hair in women, usually in a male pattern. can be hereditary or caused by a hormonal imbalance
alopecia
partial or complete loss of hair most commonly on the scalp
koilonychia
malformation in the nails in which the outer surface is concave or scooped out
onychocryptosis
commonly known as an ingrown toenail, the edges of a toenail grow inward and cut into the toe
onychomycosis
a fungal infection of the nail, can cause the nail to turn white, yellow, green or black
paronychia
acute or chronic infection of the skin fold around a nail
albinism
a genetic condition characterized by a deficiency or the absence of pigment in the skin, hair, and irises of the eyes
chloasma
a pigmentation disorder characterized by brownish spots in the face, can occur during pregnancy
vitiligo
a skin condition resilting from the destruction of the melanocytes due to unknown causes
ecchymosis
a large irregular area of purplish discoloration due to bleeding under the skin
hematoma
a swelling of clotted blood trapped in the tissues
macule
discolored flat spot that is less that 1cm in diameter
papule
a small, raised red lesion that is less than 0.5cm in diameter and does not contain pus
verrucae
also known as warts, are small, hard skin lesions caused by the human papillomavirus
wheal
also known as a welt, a small bump that itches
purulent
producing or containing pus
bulla
a large blister that is usually more than 0.5 cm in diameter
dermatitis
inflammation of the skin usually characterized by redness, swelling, and itching
eczema
a form of persistent dermatitis usually characterized by redness, itching, and dryness
exfoliative dermatitis
a condition in which there is a widespread scaling of the skin
erythema
redness of the skin due to capillary dilation
ichthyosis
a group of hereditary disorders characterized by dry, thickened and scaly skin
actinic keratosis
precancerous skin growth that occurs on sun damaged skin
blepharoplasty
the surgical reduction of the upper and lower eyelids by removing sagging skin
capillary hemangioma
a soft raised pink or red vascular birthmark
carbuncle
a cluster of connected furuncles
cellulitis
acute rapid spreading bacterial infection within the connective tissue that is characterized by malaise, swelling, warmth and red streak
furuncles
large, tender, swollen areas caused by a staphylococcal infection around hair follicles or sebaceous glands
necrotizing fasciitis
a severe infection caused by group A strep bacteria that have entered the bloodstream
erythroderma
abnormal redness of the entire skin surface
exanthem
a widespread rash that usually occurs in children
pediculosis
an infestation with lice
cicatrix
a normal scar resulting from the healing of a wound
granuloma
a small knot-like swelling of granulation tissue in the epidermis
keloid
abnormally raised or thickened scar that expands beyond the boundaries of the original incision
keratosis
any skin growth, such as a wart or callus, in which there is overgrowth and thickening of the skin
lipoma
a benign slow-growing fatty tumor located between the skin and the muscle layer
papilloma
a benign, superficial wart-like growth on the epithelial tissue or elsewhere in the body
squamous cell carcinoma
originates as a malignant tumor of the scaly squamous cells of the epithelial tissue, but can quickly spread
malignant melanoma
a type of skin cancer that occurs in the melanocytes
lipedema
chronic abnormal condition that is characterized by the accumulation of fat and fluid in the tissues just under the skin of the hips and legs
systemic lupus erythematosus
an autoimmune disorder characterized by a red, scaly rash on the face and upper trunk. the disease also attacks the connective tissue in other body systems
psoriasis
a common skin disorder characterized by flare ups in which red papules covered with silvery scales occur on the elbows, knees, scalp, back, and buttocks
rosacea
characterized by tiny red pimples and broken blood vessels
urticaria
itchy wheals caused by an allergic reaction
xeroderma