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46 Cards in this Set
- Front
- Back
Isotretinoin (Accutane)
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at high doses, can indirectly increase the concentration of P. acnes
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Propecia (Finasteride)
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a testosterone analogue that inhibits 5-α reductase for androgenic alopecia
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Malignant Melanoma
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a cutaneous neoplasm that arises from epidermal melanocytes de nove or preexisting nevus; most important clinical sign is changes in color of the pigmented lesion; borders of lesion are irregular and notched; ABCDE rule
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4 types of malignant melanoma?
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-Lentigo Maligna Melanoma
-Superficial Spreading Melanoma -Nodular Melanoma -Acral Lentiginous Melanoma |
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Superficial Spreading Melanoma
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most malignant; relatively flat topped pigmented papule or plaque; irregular borders and pigmentation; bumpy and lobulated
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Growth Phases of Malignant Melanoma
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Radial growth phase and Vertical growth phase
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Radial growth phase of Malignant Melanoma?
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tendency to grow horizontally within epidermal and superficial dermal layers; no metastasis; Lentigo Maligna Melanoma and Lentiginous Melanoma
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Vertical growth phase
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tendency to grow downward into deeper dermal layers; metastasis; Nodular Malignant Melanoma
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Corticosteroids
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anti-inflammatory & immunosuppressant activities
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Good prognosis in Malignant Melanoma?
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when tumor infiltrating lymphocytes in extremeties
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bad Prognosis in Malignant Melanoma?
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when vertical growth phase with increased number of mitotic spindles
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Dysplastic Nevi
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an abberant differentiation of benign nevi characterized by abnormal growth pattern and cytologic abnormality of melanocytes
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Squamous Cell Carcinoma
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tumor associated with excessive exposure to sunlight; carcinoma in situ with sharply defined red scaling plaques; invasive lesions that are nodular, ulcerated, hyperkeratotic; appear on hands and face; all levels of epidermis
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Basal Cell Carcinoma
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a slow growing tumor that rarely metastasizes that occurs in sun exposed areas especially in light pigmented people; rolled edges with central ulceration; pearly papules and telangiectasias; rodent ulcers; abnormalities of bone, nervous system, eyes, reproductive system; proliferating basal cells from epidermis into dermis
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types of Basal Cell Carcinoma?
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-Superficial Basal Cell Carcinoma
-Nodular Basal Cell Carcinoma -Pigmented Basal Cell Carcinoma -Morpheaform Basal Cell Carcinoma |
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Morpheaform Basal Cell Carcinoma
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sclerosing; firm white or yellowish plaque with ill-defined border; no ulceration; induration; enlarging scar
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Cutaneous Histiocytosis X
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proliferation of Langerhan cells in skin & lymph node
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Mycosis fungoides
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associated with presence of malignant T cells in peripheral blood and erythematous scaling of body surface
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Xanthoma
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associated with aggregates of histiocytes with foamy cytoplasm and the presence of Touton giant cells
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Pt presents with h/o slow growing nodule on upper eyelid. Histo exam of pearly nodule shows nests of small cells with radial arrangement at periphery, and there is infiltration of epidermis into dermis. Most likely diagnosis is:
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BCC = basal cell carcinoma
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What type of skin cancer responds to imiquimod (Aldara)?
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Superficial type BCC (basal cell carcinoma)
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Resection of the involved regional lymph node(s) is required for:
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Congenital hairy nevus overlying axillary nodes (Brewslow 1.80 mm into
reticular dermis). |
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Telangiectasias
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serpiginous, threadlike red lesions which blanch on diascopy
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Black pt presents w/ pigmented streak on left thumbnail plate that’s been there for several months & is growing. It’s asymptomatic & irregular in width. Biopsy shows:
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SCC = squamous cell carcinoma
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In ABCDE melanoma classification, what does B stands for?
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border.
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Ship captain has multiple oval-to-round brown macules on back of forearms and dorsum of hands. These lesions are called:
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Solar lentigines
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Pt presents w/ dome-shaped, reddish, smooth, firm nodule w/ central crust. This lesion is on forehead, is slowly enlarging, and there’s extensive sun damage around the lesion. Most likely diagnosis is:
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SCC = squamous cell carcinoma
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Pt presents w/ waxy, white-to-yellow lesion on left cheek x 1 year. PE shows sclerotic plaque w/ indistinct margins and telangiectasias. Most likely diagnosis is:
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Morpheaform BCC (basal cell carcinoma)
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Granulation tissue
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product of secondary healing/ proliferative phase. Includes proliferation of capillaries & inflammatory cells. "proud flesh" not bad if no pus. (Sign of healthy wound healing)
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Clean wound
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<100,000 organisms per gram of tissue
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Inflammatory phase of wound healing:
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Also known as substrate phase. No collagen, but Mφ and PMNs present. Monocytes --> macrphages (secrete MDGF)
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How are burns classified?
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the depth of injury. Partial-thickness burn wounds vary in the amount of pain.
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Most common bacterias infecting burn wounds
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Staph & Strep
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Initiation of treatment for burn patient?
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first stop the burning process.
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Diabetes mellitus increases the incidence for __________
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wound infection.
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An example of contaminated wound requiring surgery :
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Colon resection for ruptured diverticulum
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CREST syndrome is best characterized by what?
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Calcinosis.
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Important SLE feature
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false (+) syphilis serology
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Most common presenting feature in scleroderma (progressive systemic sclerosis):
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Raynaud’s phenomenom
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Clinically, glucocorticoids are most likely used for:
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Inhibiting formation of prostaglandins
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Topical glucocorticoids have the beneficial effect of:
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Causing atrophy of hypertrophic scars
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Chemical peels are used to treat
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hyperpigmentation psoriasis
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Sclerotherapy
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is indicated for varicose & telangiectic veins
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The best topical acne therapy?
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Clindamycin.
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A common and effective keratolytic agent?
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α-hydroxy acids (fruity acids)
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what is PUVA used for?
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Psoriasis.
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