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46 Cards in this Set

  • Front
  • Back
Isotretinoin (Accutane)
at high doses, can indirectly increase the concentration of P. acnes
Propecia (Finasteride)
a testosterone analogue that inhibits 5-α reductase for androgenic alopecia
Malignant Melanoma
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
4 types of malignant melanoma?
-Lentigo Maligna Melanoma
-Superficial Spreading Melanoma
-Nodular Melanoma
-Acral Lentiginous Melanoma
Superficial Spreading Melanoma
most malignant; relatively flat topped pigmented papule or plaque; irregular borders and pigmentation; bumpy and lobulated
Growth Phases of Malignant Melanoma
Radial growth phase and Vertical growth phase
Radial growth phase of Malignant Melanoma?
tendency to grow horizontally within epidermal and superficial dermal layers; no metastasis; Lentigo Maligna Melanoma and Lentiginous Melanoma
Vertical growth phase
tendency to grow downward into deeper dermal layers; metastasis; Nodular Malignant Melanoma
Corticosteroids
anti-inflammatory & immunosuppressant activities
Good prognosis in Malignant Melanoma?
when tumor infiltrating lymphocytes in extremeties
bad Prognosis in Malignant Melanoma?
when vertical growth phase with increased number of mitotic spindles
Dysplastic Nevi
an abberant differentiation of benign nevi characterized by abnormal growth pattern and cytologic abnormality of melanocytes
Squamous Cell Carcinoma
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
Basal Cell Carcinoma
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
types of Basal Cell Carcinoma?
-Superficial Basal Cell Carcinoma
-Nodular Basal Cell Carcinoma
-Pigmented Basal Cell Carcinoma
-Morpheaform Basal Cell Carcinoma
Morpheaform Basal Cell Carcinoma
sclerosing; firm white or yellowish plaque with ill-defined border; no ulceration; induration; enlarging scar
Cutaneous Histiocytosis X
proliferation of Langerhan cells in skin & lymph node
Mycosis fungoides
associated with presence of malignant T cells in peripheral blood and erythematous scaling of body surface
Xanthoma
associated with aggregates of histiocytes with foamy cytoplasm and the presence of Touton giant cells
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:
BCC = basal cell carcinoma
What type of skin cancer responds to imiquimod (Aldara)?
Superficial type BCC (basal cell carcinoma)
Resection of the involved regional lymph node(s) is required for:
Congenital hairy nevus overlying axillary nodes (Brewslow 1.80 mm into
reticular dermis).
Telangiectasias
serpiginous, threadlike red lesions which blanch on diascopy
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:
SCC = squamous cell carcinoma
In ABCDE melanoma classification, what does B stands for?
border.
Ship captain has multiple oval-to-round brown macules on back of forearms and dorsum of hands. These lesions are called:
Solar lentigines
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:
SCC = squamous cell carcinoma
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:
Morpheaform BCC (basal cell carcinoma)
Granulation tissue
product of secondary healing/ proliferative phase. Includes proliferation of capillaries & inflammatory cells. "proud flesh" not bad if no pus. (Sign of healthy wound healing)
Clean wound
<100,000 organisms per gram of tissue
Inflammatory phase of wound healing:
Also known as substrate phase. No collagen, but Mφ and PMNs present. Monocytes --> macrphages (secrete MDGF)
How are burns classified?
the depth of injury. Partial-thickness burn wounds vary in the amount of pain.
Most common bacterias infecting burn wounds
Staph & Strep
Initiation of treatment for burn patient?
first stop the burning process.
Diabetes mellitus increases the incidence for __________
wound infection.
An example of contaminated wound requiring surgery :
Colon resection for ruptured diverticulum
CREST syndrome is best characterized by what?
Calcinosis.
Important SLE feature
false (+) syphilis serology
Most common presenting feature in scleroderma (progressive systemic sclerosis):
Raynaud’s phenomenom
Clinically, glucocorticoids are most likely used for:
Inhibiting formation of prostaglandins
Topical glucocorticoids have the beneficial effect of:
Causing atrophy of hypertrophic scars
Chemical peels are used to treat
hyperpigmentation psoriasis
Sclerotherapy
is indicated for varicose & telangiectic veins
The best topical acne therapy?
Clindamycin.
A common and effective keratolytic agent?
α-hydroxy acids (fruity acids)
what is PUVA used for?
Psoriasis.