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20 Cards in this Set
- Front
- Back
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Eczematous dermatitis
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Most common inflammatory skin disorder; several forms, including contact dermatitis, allergic contact dermatitis, and atopic dermatitis; intercellular edema and epidermal breakdown; erythematous pruritic weeping vesicles
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Folliculitis
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Inflammation and infection of the hair follicle and surrounding dermis; presence of inflammatory cells within the wall and Ostia of the hair follicle creates a follicular based pustule; from shaving, antibiotics, occlusive clothing, humidity; small pustule located over pilosebaceous orifice
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Furuncle (boil)
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Deep seated infection of the pilosebaceous unit; caused by staphylococcus aureus; hot red tender pustule that may rupture
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Cellulitis
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Diffuse, acute, infection of the skin and subcutaneous unit; caused by streptococcus pyogenes or S. aureus; borders not well demarcated; break in the skin, such as a fissure, cut, laceration, insect bite, or puncture wound
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Tinea (dermatophytosis)
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Group of noncandidal infections that involve the stratum corneum, nails, or hair; infection by dermatophytes, acquired by direct human or animal contact, lives off dead keratin; nails yellow thick and separated; lesions may be papular, pustular, vesicular, erythematous, or scaling
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Pityriasis rosea
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Self limiting inflammation of unknown cause; round or oval plaque, not contagious; lesions pale, erythematous, and macular with fine scaling; Christmas tree pattern on trunk
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Psoriasis
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Chronic and recurrent disease of keratin synthesis; increased epidermal cell turnover, increased numbers of epithelial stem cells, abnormal differentiation of keratin expression; well circumscribed dry silvery scaling papules and plaques
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Rosacea
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Chronic inflammatory skin disorder; does not itch, flushing due to sun, cold, emotion, hot drinks, spicy food, alcohol; telangiectasis, erythema, papules, and pustules in center of face; rhinophyma may occur (sebaceous hyperplasia of nose)
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Herpes zoster (shingles)
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Varicella zoster viral infection; dormant viral particles in posterior spinal ganglia or cranial sensory ganglia become activated; pain and itching of dermatome; red, swollen plaques or vesicles that become filled with purulent fluid
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Herpes simplex
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Infection by herpes simplex virus; type 1 is oral, 2 is genital; tenderness, pain, paresthesia or burning; grouped vesicles on erythematous base
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Drugs eruption
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Immunologically mediated cutaneous reactions to medications include Ig-E-dependent cytotoxic immune complex and cell mediated hypersensitivity reactions; discrete or confluence erythematous macules and papules
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Acnthosis nigricans
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Nonspecific reaction pattern associated with obesity, endocrine syndromes, or malignancies or as inherited disorder (autosomal dominant); hyperinsulinism and insulin resistance lead to it; symmetric brown thickening of skin with plaques or patches of thickened skin with velvety or slightly verrucous texture; mostly axilla
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Anthrax
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Caused by gram positive bacillus anthracis; pruritic macule or papule, central necrosis, drive and falls off
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Smallpox
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Caused by variola virus; transmitted by saliva droplets, flat red lesions evolve at same rate, become vesicular then pustular and crust; also fever, back ache, fatigue, headache
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Basal cell carcinoma
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Most common skin cancer; arises in basal layer of epidermis; shiny nodule that is pearly or translucent; open sore, crusting or bleeding, scar like area that is shiny and taut
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Squamous cell carcinoma
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Second most common skin cancer; arises in epithelium of sun exposed areas; elevated growth with a central depression, wartlike, scaly red patch with irregular borders, open sore may have crusting
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Malignant melanoma
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Lethal form of skin cancer that develops from melanocytes which migrate into skin, eye, cns, and mucus membranes; most arise de novo
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ABCs of melanomas
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A. Asymmetry of lesion
B. borders irregular C. Color not same all over D. Diameter is greater than 6mm E. evolution..existing lesions change |
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Kaposis sarcoma
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NeoplasM of the endothelium and epithelial layer of the skin; caused by kaposi sarcoma herpes virus 8, common with HIV; soft vascular blue purple painless lesions, macular or papular, plaques, keloids, or ecchymotic areas
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Alopecia areata
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Sudden rapid patchy loss of hair usually from scalp or face; cause unknown, genetic and environmental; also nail pitting, hair shaft poorly formed and breaks at skin, hair loss in sharply defined round areas
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