DERM Flashcards
- Diffuse, non-purulent infection through epidermis and dermis.
- Spreading port of entry infection.
- Localized pain/tenderness, fever, erythema, chills, malaise, regional lymphadenopathy.
Cellulitis
- Erythematous, well-defined with central clearing
- Circular or half-moon shaped
- Scaly
Tinea (capitis, corporis, cruris)
- Usually caused by saprophytic yeast
- Fawn/salmon colored macules with fine scaling
- Lesions tend to coalesce to patches
- Chest, shoulders, back
- Recurrence in summer months
Tinea versicolor
- Onset of “slapped cheek” rash
- 2nd stage: lacy, reticular pattern on butt and extensor surfaces
- 3rd stage: marked dissipation or increased severity of rash
Erythema infectiosum/Fifth’s disease
- Prodrome of fever, cough, coryza, conjunctivitis
- Koplik spots
- Red maculopapular rash on face, behind ears, and on neck
- Spreads inferiorly
Measles (rubeola)
- Grouped vesicles on erythematous base
- Painful vesicles erode and form crusts
- Tingling, burning, or itching prior to outbreak
HSV 1 and 2
- Pruritic, erythematous lesions between toes
- Fissures with opaque white scales onto soles/sides/dorsum of feet
Tinea Pedis
- Intensely pruritic with inflammatory burrows and pinpoint vesicles (webs of fingers)
- May see excoriation
Scabies
- Milky white patches in mouth, can be wiped off to reveal erythematous base
- Sometimes pinpoint bleeding
Oral candida
- Prodrome: unilateral, pain, itching 2-5 days before rash
- Grouped vesicles on erythematous base in single dermatome
Herpes zoster (shingles)
-Pruritic scalp with visualization of louse or nits
Lice (pediculosis)
- Inflammatory reaction involving epidermis and dermis, pruritic
- Acute: vesicles
- Subacute: erythema, fissuring, scaling
- Chronic: scaling
Eczema
- Superficial skin infection commonly on face and extremities
- Honey colored crust with stuck on appearance
- Pruritic
Impetigo
- Genetic allergic condition of chronic, relapsing, pruritic eczema
- Usually begins in infancy
- Classic on face: erythema, scaling, oozing
- Associated with asthma and allergies
Atopic dermatitis
- Persistent keratotic lesion with telangiectasias
- Itching, burning, mild hyperesthesia
- Small, multiple red, pink, or brown macules, papules or plaques that are rough to palpation
- Face, scalp, hands, neck
Actinic keratosis
- Genetic predisposition
- Well-defined red or salmon plaques with silvery, white scale
- Koebner phenomenon (develops at site of trauma)
- Auspitz sign (pinpoint bleeding when picked)
- Extensor surfaces
Psoriasis
- Chronic condition in adults involving recurrent episodes of facial flushing, erythema, telangiectasias, and acne
- Can be caused by hot liquids, spicy foods, alcohol or sun
Rosacea
- Multiple small papules and pustules with erythematous base pierced by a central hair
- Pruritic and usually clustered in groups
Folliculitis
- Chronic inflammatory dermatosis
- Face, back, chest, upper arms
- Inflammatory lesions including papules, pustules or nodules
Acne vulgaris
-Pale pink papules that coalesce to form cauliflower lesions
Condylomata accuminata
- Slow growing, non-healing sore
- Pearly white to pigmented
- Telangiectasias present
- Rolled border
- Face, ears, scalp, upper trunk
Basal cell carcinoma
- Primary: single, painless ulcer (chancre)
- Secondary: flu-like prodrome then maculopapular rash all over, usually palms and soles
Syphilis
Koplik spots
blue, raised lesions on buccal mucosa during measles prodrome
How is oral candida diagnosed?
KOH prep