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Session 2 CM derm6
CM- Derm -6- scaling lesions 1 tinea, etc
| Question | Answer |
|---|---|
| What are the three genre of dermatophyte infections | microsporum, trichophyton, and epidermophyton |
| What is the prototype lesions of dermatophyte infections | annular, scaly patch with discrete border |
| What are dermatophyte diseases referred to as | tinea |
| Name where each of the following infect tinea capitis tinea corporis tinea faciei tine cruris tinea pedis tinea manuum tinea unguium | tinea capitis- scalp tinea corporis- body tinea faciei- face tinea cruris- groin/genitals tinea pedis- feet tinea manuum- hand tinea unguium- nails |
| Dermatphyte infection of the scalp that mainly infects children more common in african americans and hispanics. Transmission fostered by overcrowdin and poor hygiene in urban settings | Tinea Capitis |
| Can cause black dot alopecia where hairs break off at level of scalp | tinea capitis |
| Tinea capitis that has formed pustules or a boggy mass | kerion |
| S/Sx associated with having a kerion | reional lymphadenopathy, scarring alopecia if in hair shaft. |
| most commonly caused by T. Rubrum, M. Canis and T mentagrophytes is transmitted by direct contact with infected, person, animal or fomite | Tinea Corporis and Tinea faciei |
| what aer the s/sx of tinea corporis/ tinea faciei | annular lesions with erythematous scaling, raised margins and central clearing |
| Tinea infection that likes warm moist environments and has multiple red papulovesicles with well marginated raised border | Tinea Cruris |
| most common dermatophyte infection, associated with occlusive shoes and communal baths/showers | tinea pedis and manuum |
| What is the most common dermatophyte to cause tinea pedis and manuum | trichophyton rubrum |
| what is associated with tinea pedis | toenail onchomycosis |
| Tinea pedis can lead to secondary infection where and how | can cause secondary tinea cruris infection from pulling up underwear over feet |
| what is the most common type of tinea pedis not the dermatophyte that causes it | intertrigionous type between 4th and 5th toe webs with fissuring and scaling |
| Type of tinea pedis that has patchy or diffuse scaling over the soles frequently associated with tinea manuum "one hand two feet presentation) and associated with onychomycosis | tinea pedis mocassin foot |
| tinea pedis marked by blisters and vesicles on the medial aspect of one or both feet | vesicular tinea pedis |
| rare tinea pedis associated with maceration and weeping white overhydrated skin | ulcerative tinea pedis |
| how do you confirm the diagnosis with tinea | KOH prep showing hyphae from scales or chains of spores in hair shaft |
| What diagnosis technique can be used on tinea capitis | wood's lamp fluorescence |
| What is the general treatment for tineas | topical antifungals- clotrimazole econazole, miconazole, oxiconazole |
| what type of antifungal is inefective for tinea capitis and unguium | topical antifungals only systemic antifungals like lamisil and griseofulvin are effective |
| What are the systemic antifungals | lamisil and griseofulvin |
| What is meant by tinea incognito | dermatophyte infection that has been altered by use of oral or topical steroids so that it doesn't appear as a typical fungal infection |
| What is the fungal infection that causes thickened yellowed nails with subungual debris. | Onychomycosis |
| What is one of the recurrent problems with onychomcosis | may serve as a resevoir for repeated tinea pedis and tinea cruris |
| How common is it for individuals with onychomycosis to have dermatophyte infection in another part of the body | 30% |
| Disease associated with obesity, occlusive clothing, diabetes, and antibiotic therapy. KOH shows yeast forms and pseudohyphae | cutaneous candidiasis |
| How can cutaneous candidiasis present | thrush, vaginitis, balanitis, intertrigo, nail infections, diaper dermatitis |
| Systemic cutaneous candidiasis can be problematic in which way | it is life threatening |
| What is the most common form of candida | thrush |
| what are the S/sx of thrush | discrete white patches on the buccal mucosa, tongue and palate. scrapes off leaving a bright red surface |
| what is the treatment for thrush | nystatin swishes or clotrimazole troches |
| candida disease associated with lip licking, poorly fitting dentures and sagging skin around mouth | angular chelitis |
| what is the treatment for angular chelitis | topical nystatin, minonazole, clotrimazole, or ketoconazole |
| candinda of the groin, scrotum, axilla, inframammary region. | Intertrigo |
| what are the S/Sx of candida intertrigo | vesicopustules, erythema, erosions, surrounded by peripheral scaling |
| HOw is candida intertrigo different than tinea infections | generally redder and more macerated than tineas |
| Scaly, hypo or hyperpigmented macules on trunk and proximal extremities caused my malassezia furfur. | Tinea Versicolor |
| What is the best way to discover tinea versicolor | the lesions don't tan so you get white spots surrouned by tan skin. |
| where is tinea versicolor common | tinea versicolor is common in warm humid environments |
| In a KOH prep of tinea versicolor what are you going to see | spaghetti and meatballs = yeast and hyphae |
| under a wood's lamp what color would tinea versicolor appear | yellow-green fluorescence |
| What is the treatment for tinea versicolor | ketoconazole 2% shampoo or selsun shampoo |
| inflammatory skin disease associated with abnormal skin cell turnover. Skin turnover is 3 days rather than normal 28. | Psoriasis |
| what are the typical s/sx of psoriasis | has red thick plaques with adherent silvery scales |
| what is the auspitz sign of psoriasis | punctate bleeding from lesion when scale is removed |
| what is the koebner sign of psoriasis | appearance of new lesions at sites of trauma often linear |
| where is psoriasis most common | scaly plaques on elbows, knees, and scalp |
| What is guttate psoriasis | scattered pink scaly papules on trunk with an acute onset in children and streptococcal pharyngitis |
| What are the s/sx of pustular psoriasis | generalized pustule, ill patient with fever, arthralgia, leukocytosis, hypocalcemia, hypoalbuminemia |
| What is generalized redness and scaling called in psoriasis | erythroderma |
| what are the associated diseases with psoriasis | nail pitting, onycholysis and oil spots asymmetric arthritis- in small joints of hand and feet gout- elevated uric acid levels |
| what is the treatment for psoriasis | topical steroids topical retinoids topical vit D analogs PUVA light therapy Systemic: acitretin, methotrexate, cyclosporine Immune modulators: etanercept, infliximab |
| what are the systemic treatments for psoriasis | acitretin, methotrexate, cyclosporine |
| what are the immune modulator that can be used to treat psoriasis | etanercept, infliximab |
Created by:
smaxsmith
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