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B1-2 Skin Infections & Infestations III
n/a
22
Medical
Graduate
09/06/2012

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Cards

Term
Are causes superficial dermatophytes (fungal infections)?
Definition
The "tineas", affects stratum corneum, hair, and nails
Term
How is tinea pedis (athlete's foot) treated?
Definition
Dry tinea pedis: topical antifungal, Macerated tinea pedis: aluminum chloride along with topical and systemic antifungals
Term
What are the clinical features of Tinea Unguium?
Definition
Onycholysis, thickened nail plate, subungual debris, distal subungual invasion via hyponchium (most common), proximal subungual invasion under proximal nail fold in immunoicompromised, white superficial direct invasion into superficial nail plate
Term
What should make you rethink a Tinea Unguium diagnosis?
Definition
Lack of toenail infection, is seen in hand, toenail, and plantar foot, the "two foot-one hand disease"
Term
How is Tinea Unguium treated?
Definition
Difficult to clear/high relapse, Terbinafine has highest cure rate
Term
What are the clinical features of Tinea Manuum?
Definition
Erythema and fine scale, feet are always involved, usually one-hand and two-feet
Term
How is Tinea Manuum treated?
Definition
Terbinafine, Itraconazole, Fluconazole
Term
What are the clinical features of Tinea Cruris ("jock itch")
Definition
Feet and toenails are source of dermatophytosis, may extend to the perineum, perirectal area, buttocks, does not involve genitals and rarely seen in women, common in inguinal crease and upper inner thigh
Term
What are the clinical features of Tinea Corporis (ringworm)?
Definition
Annular patch with distinctive slightly raised, fin scaling along border w/central clearing, Majocchi's granuloma (tinea profunda) may occur secondary to topical corticosteroid application
Term
How do you determine whether or not a fungus is causing Tinea Corporis?
Definition
Dissolving in KOH - "if it scales, scrape it"
Term
How is Tinea Corporis treated?
Definition
Antifungal agent if superficial, If Majocchi's granuloma is present, topical antifungals are ineffective, must use systemic antifungals - Griseofulvin, Terbinafine, Azoles
Term
What are the clinical features of Tinea Capitis?
Definition
Similar to Seborrheic dermatitis w/dry scaling and patches of alopecia, hair breaks off at follicular opening leaving black dots, patches/thin plaques, kerion (painful boggy mass with pustules)
Term
How is Tinea Capitis treated?
Definition
If it is Seborrheic-like, give oral Griseofulvin (Terbinafine as backup), if Kerion is present, give both oral Griseofulvin and Terbinafine
Term
How is Tinea Barbae treated?
Definition
Bacterial, viral, and fungal cultures, topicals have no effect if follicular, systemic antifungal often needed
Term
What are some predisposing factors of Candida (fungal) infections?
Definition
Moisture, heat, maceration, occlusion, associated with Diabetes mellitus, Cushing's disease, infants up to 6mo, immunosuppresion
Term
What are the general clinical features of Candida?
Definition
Paronychia, intertrigo, angular cheilitis, thrush, vulvovaginitis, balanitis, diaper dermatitis
Term
What are the clinical features of Candida albicans?
Definition
Involves proximal nail fold, common w/wet-work, tender, painful, erythematous swelling, nail dystrophy, positive "bolster" sign
Term
How is Candida Paronychia treated?
Definition
Topical anticandidal agents - Azole and Ciclopirox, Systemic anti-candidal agents - Fluconazole, Itraconazole, Ketoconazole (Oral Nystatin NOT for skin infections)
Term
What are the clinical features of Candida Intertrigo?
Definition
Bright, red, moist denuded skin w/ satellite lesions
Term
How is Candida INtertrigo treated?
Definition
Drow out the moist area, topical and systemic anti-candidal agents
Term
What is "thrush"?
Definition
Seen in Candida infections, involves mucous membrane of the mouth or the vagina, loosely adherent white patches with underlying bright red, moist mucosa, may be painful
Term
How is Candida Thrush treated?
Definition
Oral nystatin in infants, systemic anti-candidal agents
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