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30 Cards in this Set
- Front
- Back
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Difference of seborrheic dermatitis and atopic dermatitis? |
Seborrhoeic dermatitis affect the scalp,forehead,eyebrows, nasolabial folds and central chest. Atopic dermatic is fond on: -Antecubital and politeal fossa. |
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Distribution of skin disease how to think? |
Is it localized, universal , symmetrical? Check hair and Nails. Open eyes for incidental skin cancers the patient may have ignored |
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After distrubution we shall look for morphology? |
Many skin disease has characteristic skin morphology. But patient scratching, ulceration and other event might change this. To find primary lesion is to look closely. What is size what is shape what color is it whats the margins like? what are surface characteristics what does it feel like? Look at page 31 table 3.1 and 3.2 |
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What is papule? |
Small solid elevation of skin less than 0.5 cm |
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what is plaque? |
Elevated area of skin greater the 2cmin diameter bu without substantial dept. |
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what is a macule? |
small flat area. Less than 0.5 cm in diameter |
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What is patch? |
A large macule |
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What is vesicle? |
Circumscribed elevation of skin, less than 0.5 cm in diameter containing fluid. |
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A Bulla is ? |
Circumscribed elevation of skin over 0.5 cm in diameter containing fluid. Larger then vesicle |
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A pustule is? |
Visible accumulation of pus in the skin |
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What is an abcess? |
Localized collection of pus in cavity. More than 1 cm in diameter. Abscesses are usable nodules and the term purulent bulla is sometimes used to describe pus-filled blister that is situated on top of skin rather then within it. |
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What is furnicule or boil? |
Infection of single hair follicle and surrounding tissue. |
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What is carbuncle? |
Infection of group of hair follicles and surrounding tissue. |
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What is folliculitis? |
inflammation of one or more hair follicles |
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What is awhile? |
Elevated white compressible evanescent area produced by dermal edema. Often surrounded by a red axon-mediated flare. Although usually less than 2cm in diameter , some wheals are huge. |
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Angioedema is what? |
Diffuse swelling caused by oedema extending to the subcutaneous tissue.
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What is a nodule? |
Solid mass in the skin, usually greater than 0.5 cm in diameter in both witdth and depth, which can be seen to be elevated (exophytic) or can be palpated (endophytic) |
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Describe a tumor! |
A tumour is harder to difine as the term is based more correctly on microscopic pathology rather then clinical morphology. An enlargement of tissue by normal or pathological material or cells that form mass usually more than 1cm in diameter. (large non malign tumor might be called nodule) |
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What is papilloma? |
Nipple-like projection from skin. |
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What is petechiae ? |
Ounhead sized macule of blod in skin. |
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What is purpura? |
Larger macule or papule of blood in the skin. Such blood filled lesion do not blanch if glass lens is pushed against them. |
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What is ecchymosis ? |
Another name for bruise. -Is a lager extravasation of blood into skin and deeper structures. |
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What is hematoma? |
swelling from gross bleeding. |
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a burrow is what? |
Liniar or curviliniar papule with some scaling . caused by scabies mite. |
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What is comedo? |
plug of greasy keratin wedged in dilated pilosebacous orifice. Open comedones are BLACKHEADS. The follicle opening of closed comedy in nearly covered over by skin so that it looks like a pinhead-sized ivory-colored papule. |
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Erythema is redness caused by? |
vascular dilation |
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Telangiextasia is? |
Visable dilation of small cutaneous blood vessel. |
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Poikiloderma is what? |
Combination of atrophy, reticulate hyperpigmentation and telangiectasia. |
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horn is? |
Keratin projection that is taller than it is broad. |
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Erythroderma is? |
Generlized redness involving 90% or more of the skin which may be scaling (exfoliative erythroderma or smooth. |
