Exam 3- Disease And Disorder Terminology Flashcards
Candidiasis
Infection of the skin, mouth (also called thrush), or vagina caused by the yeast-type fungus Candida albicans. Candida is normally present in the mucous membranes; overgrowth causes an infection. Esophageal candidiasis is often seen in patients with AIDS (acquired immunodeficiency syndrome)
Carbuncle
Skin infection composed of a cluster of boils (furuncle, see below) caused by staphylococcal bacteria.
Cellulitis
Inflammation of the skin and subcutaneous tissue caused by infection, characterized by redness, swelling, and fever
Contusion
Injury with no break in the skin, characterized by redness, swelling, and discoloration (also called a bruise)
Eczema
Noninfectious, inflammatory skin disease characterized by redness, blisters, scabs, and itching
Fissure
Slit or cracklike sore in the skin
Furuncle
Painful skin node caused by staphylococcal bacteria in a hair follicle (also called a boil)
Gangrene
Death of tissue caused by loss of blood supply followed by bacterial invasion (a form of necrosis)
Herpes
Inflammatory skin disease caused by herpes virus characterized by small blisters in clusters. Many types of herpes exist. Herpes simplex, for example, causes fever blisters; herpes zoster, also shingles, is characterized by painful skin eruptions that follow nerves inflamed by the virus (see Table 4-1, p. 106)
Impetigo
Superficial skin infection characterized by pustules and caused by either staphylococci or streptococci (see Table 4-1, p. 106)
Infection
Invasion of pathogens in body tissue. An acute infection may remain localized if the body’s defense mechanisms are effective or may persist to become subacute or chronic (see sidebar p. 157). A systemic infection occurs when the pathogen causing a local infection gains access to the vascular or lymphatic system and becomes disseminated throughout the body. (See sepsis, p. 406.)
Kaposi sarcoma
Cancerous condition starting as purple or brown papules on the lower extremities that spreads through the skin to the lymph nodes as internal organs; frequently seen with AIDS (see Figure 4-4, E).
Laceration
Torn, ragged-edged wound
Lesion
Any visible change in tissue resulting from injury or disease. It is a broad term that includes sores, wounds, ulcers, and tumors.
MRSA infection
Invasion of body tissue by methicillin-resistant Staphylococcus aureus, a strain of common bacteria that has developed resistance to methicillin and other antibiotics. It can produce skin and soft tissue infections and sometimes bloodstream infections and pneumonia, which can be fatal if not treated. MRSA is quite common in hospitals and long-term care facilities but is increasingly emerging as an important infection in the the general population.
Pediculosis
Invasion into the skin and hair by lice
Psoriasis
Chronic skin condition producing red lesions covered with silvery scales
Rosacea
Chronic disorder of the skin that produces erythema, papules, pustules, and broken blood vessels, usually occurring on the central area of the face in people older than 30 years (Figure 4-6) (also called acne rosacea)
Scabies
Skin infection caused by the itch mite, characterized by papules eruptions that are caused by the female burrowing into the outer layer of the skin and laying eggs. This condition is accompanied by severe itching (see Table 4-1, p. 106).
Scleroderma
Disease characterized by chronic hardening (induration) of the connective tissue of the skin and other body organs.
Squamous cell carcinoma (SqCCA)
Malignant growth that develops from scalelike epithelial tissue. Unlike basal cell carcinoma, there is a significant potential for metastasis. The most frequent cause is chronic exposure to sunlight (see Figure 4-4, B).
Tinea
Fungal infection of the skin. The fungi may infect keratin of the skin, hair, and nails. Infections are classified by body regions such as tinea capitis (scalp), tinea corporis (body), and tinea pedis (foot). Tinea in general is also called ringworm, and tinea pedis specifically is also called athlete’s foot (see Table 4-1, p. 106).
Urticaria
Itchy skin eruption composed of wheals (an individual hive) of varying sizes and shapes. Idiopathic urticaria is sometimes associated with infections and with allergic reactions to food, medicine, or other agents. Urticaria reaction can include swelling of the airways that can be a medical emergency. Other causes include internal disease, physical stimuli, and genetic disorders (also called hives) (see Table 4-2, p. 123).
Vitiligo
White patches on the skin caused by the destruction of melanocytes associated with autoimmune disorders (Figure 4-7).