Skin Disorder (Exam 3) Flashcards
Fungal Transmission
Implantation: Tineas
Inhalation: Cryptococcal
Taking antibiotics: candidiasis
Fungal infections more common in
Elderly and immuno-compromised
Vascular indwelling catheter, organ transplant recipients and patients receiving chemo
Superficial Fungal Infections
Dermatophytes
Fungi that cause superficial skin infections
Fungal disorders/infections are know as
Mycoses
When caused by dermatophytes the mycoses are
Tinea
When caused by candida albicans mycoses are called
candidiasis
Two most common superficial fungal infections
Cadidiasis
Tineas
Infect hair, skin, and nails
Superficial Fungal Infection: Treatment
-Treated with topical antifungal preparations
-Systemic antifungals needed for extensive areas or for treatment failures (PO OR IV)
Types of common Fungi
- Yeast = Candida albicans
- superficial dermatophytes = Tineas (live on keratnized tissue)
Tineas names based on location of body
Corporois - Ringworm
Pedis - Athletes foot
Versicolor - Upper chest, back, and arms
Capitis - Hair
Cruis - Ringworm of groin
Tinea Pedis
-Dry scaling prutic lesions
-May only affect skin in the web spaces between the toes
Tinea Pedis: Risk factors
Coming into contact with infected skin or fungus in environment
Locker room and college dorms
Tinea Pedis: Treatment
Topical antifungal in most cases
Resistant: Oral or IV
Tinea Capitis
Can affect scalp, eyebrows, or eyelashes
-Scaly erythematous lesions and hair loss
-May cause permanent alopecia (baldness)
-is the most common pediatric dermatophyte
Tinea Capitis: Treatment
Oral systemic antifungals twice a day for 4-6 weeks
Tinea Versicolor
Fungus that affects the skin of the upper back or arms
Caused by overgrowth of the yeast that live on our skin
Tinea Versicolor: Risk Factors
Hot climate, sweating a lot, oily skin, weakened immune system, NOT contagious
Candidiasis
Thrush or yeast infections
Candidiasis Albicans: Risk factors
Immunosuppression (iatrogenic, acquired), antibiotic use
Candidiasis: Appearance
May appear as white lesions in mouth
Beefy red with satellite lesions in intertriginous areas (skin folds)
Systemic Fungal Infections
-Require aggressive treatment with oral or iv antifungals
-Affects internal organs
Systemic Fungal Infections of the Lungs
-Histoplasmosis
-Blastomycosis
-Pneumocystis
Systemic Fungal Infections: Lungs and meninges
Cryptococcosis
Pigmented Lesions
-Melasma
-Vitiligo
Melasma
-dark macules on the face
-Most common in pregnant women (Mask of pregnancy)
Melasma: treatment
-Avoid sun
-Bleaching creams with hydroquinone
-Tretinoin/Retin-A (vitamine A derivative)
Vitiligo
-Acquired conditions characterized by abnormalites in the production of melanin
-Pigment disappears from a patch of skin
-Occur suddenly before or around the age of 21