Science Quiz / Rehfield Dermatology Diagnosis & Treatment

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QUIZ: Can you name the Rehfield Dermatology Diagnosis & Treatment?

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_____ biopsy: Ideal for diagnostic skin biopsy or removing small lesions.
____ biopsy: can be used to remove basal cell carcinoma.
Application of phenol or other irritants to produce inflammation and sloughing of epidermis. Sometimes used for unusually severe facial actinic keratosis; or for cosmetic treatment
_______ lighting: Sidelighting across a lesion in a darkened exam room; even slightly elevated lesions will cast a shadow
After local anesthesia, electrode is applied to lesion to produce tissue destruction. May be used for warts, skin tags, and other benign lesions.
______ biopsy: Circular “cookie cutter” instruments of various diameters are used to cut out a cylindrical core of tissue from a lesion
_____ surgery: In general, very effective tx for basal cell or squamous cell Ca
Aids in diagnosis of tinea capitis, erythrasma, and porphyria cutanea tarda
Fusiform or elliptical scalpel ______: Indicated for deep lesions, fragile lesions, and suspected malignant melanoma, where removal of lesion in its entirety lowers risk of spread
Produces inflammation; effective treatment of extensive actinic keratosis, warts, or psoriasis
_____ biopsy: Indicated for sampling a portion of lesion; not indicated for suspected malignant melanoma.
A loop-shaped knife is used to scrape a lesion after local anesthesia. This may be done to obtain tissue fragments for diagnosis, but does not allow study of entire lesion and surr
Tinea ______: more common in children
Causative organism is Cornyebacterium minutissimum
Indicated for treatment of benign lesions (actinic keratosis, warts, skin tags, seborrheic keratosis, lentigo, molluscum contagiosum), and occasionally for small, well-defined basa
______ therapy: Indicated for well-defined squamous cell carcinoma and basal cell carcinoma, in older individuals or with involvement of areas such as the nose and ears, where surg
Scrapings from lesions are placed on a glass slide, and several drops 10% potassium hydroxide (which dissolves keratin) are added. Gentle heating over alcohol burner hastens dissol
Treats Port-wine stain, spider angiomata, cherry angiomata
_____ culture: If suspicion of fungal infection high despite negative KOH, scraping can be inoculated into growth medium, and incubated aerobically for 4 to 6 weeks
Tinea _____: more common in adults
Applied every 2-3 days for several weeks to warts, actinic keratoses, or basal cell carcinoma
A glass slide is pressed against a lesion. Blood-filled lesions (e.g. erythema or hemangioma) will blanch, while purpura (e.g. vasculitis) will not.
Gauze soaked in 5% acetic acid is applied to penis or to cervix. Subclinical warts (human papilloma virus) can then be visualized as tiny white papules on magnification or colposco
______ smear: An intact vesicle is unroofed, and the base is scraped with a scalpel. The finding of multinucleated giant cells allows rapid identification of Herpes virus, includin
Low intensity UV light: fungal infections tend to fluoresce; epidermal pigmentation is accentuated; dermal pigmentation is diminished.
Simple elliptical excision is to be avoided in certain ____ locations (e.g. adjacent to eyelid) where distortion may result; a more complex procedure may be necessary
______ biopsy: For diagnosing superficial lesions: seborrheic or actinic keratoses, skin tags, lentigo, superficial basal cell or squamous cell carcinomas. Causes less scarring tha
If pustules or exudative lesions are present, ____ stain of specimen may indicate etiology, although a culture is more specific
______ surgery: Indicated when conventional excision would sacrifice too much normal tissue in a cosmetically or functionally critical area (eyelids, nose, ear).

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