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46 Cards in this Set
- Front
- Back
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Macule
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- Circumscribed
- Flat - Brown, red, blue, - <1 cm - Non-palpable EG: Beckers nevus |
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Patch
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- Flat
- Circumscribed - Discolored - non-palpable - >1 cm |
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Papule
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- Elevated, solid lesion
- Up to 1cm - Palpable - Color varies - Confined to dermis EG: Wart |
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Plaque
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- Circumscribed
- Elevated - Superficial - Solid - > 1 cm - Dermis only EG: Psoriasis |
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Nodule
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- Circumscribed
- Elevated - Solid - Extends into dermis EG: Neurofibromatosis |
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Vesicle
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- Circumscribed collection of fluid
- UP to 1cm - Epidermis only EG: Herpes simplex |
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Pastule
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- Circumscribed collection of leukocytes
- Varies in size EG: Folliculitis |
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Bulla
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- Circumscribed
- Superficial collection of free fluid - > 1cm EG: Herpes Zoster |
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Wheal (hive)
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- Firm, edematous plaque
- Results form infultration of the dermis with fluid - Transient - AKA Urticaria |
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Scales
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- Excess dead epidermis
- Produced by abnormal keratinization EG: Psoriasis |
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Crust
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- Collection of dried serum and cellular debris
- AKA - scab EG: Impetigo |
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Eschar
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- Thick, dry
- Palpable - Upraised, irregular - Necrotic tissue |
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Erosion
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- Focal loss of dermis
- Don't penetrate below dermo-epidermal junction - heal w/o scarring EG: Tinea Pedis |
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Ulcer
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- Focal loss of dermis and epidermis
- Heal w/ scarring EG: canchoid |
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Fissure
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- Linear loss of epidermis and dermis
- Sharply defined, vertical walls EG: Eczema |
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Atrophy
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- Depression in skin resulting from thinning of epidermis and dermis
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Scar (Cicatrix)
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- Abnormal formation of connective tissue implying dermal damage
- Become white and atrophic EG: Keloid |
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Excoriation
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An erosion caused by scratching
- Often linear erosions |
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Comedone
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- Plug of sebaceous and keratinous material lodged in the opening of a hair follicle
- Blackhead - dilated - Whitehead - Narrowed |
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Milia
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- Small superficial cyst with no visible opening
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Cyst
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- Circumscribed w/ wall and lumen
- Lumen may contain fluid or solid matter |
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Burrow
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- Narrow, elevated, tortuous channel produced by parasite
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Lichenification
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- Thickened epidermis induced by scratching
- Washboard surface |
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Telangiectasia
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- Dilated superficial blood vessels
- Skin thickening |
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Petechiae
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- Circumscribed, upraised deposit of blood < 0.5cm
- DOES NOT BLANCH |
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Purpura
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- Circumscribed, upraised deposit of blood > 0.5cm
- DOES NOT BLANCH |
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Ecchymosis
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- Bruises
- More EXTENSIVE than PURPURA - Round or irregular and flat |
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Erythema
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- Diffuse redness of skin caused by inflammation
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Dermatographism
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- Focal urticaria secondary to stroking of scratching
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Darier's Sign
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Rapid swelling of a lesion after pressure is applied
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Nikolsky's Sign
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Epidermal shearing with minimal lateral pressure in seemingly uninvolved skin
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Auspitz Sign
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Appearance of multifocal pinpoint bleeding after removing a plaque of crust
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Koebner phenomenon
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Appearance of lesions along areas of irritation
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Maceration
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Softening and wetting of the skin due to chronic water or urine exposure, edema, ointments or barrier dressing
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Eccrine
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- Widely distributed
- Opens directly to skin surface - Regulate body heat |
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Apocrine
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- Axillary and genital region
- Open into hair follicles - Stimulated by stress - Responsible for body odor |
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Sebaceous Gland
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- Produces waxy substance secreted through hair follicle
- Not in palms and soles |
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Clubbing of finger causes
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Primary - Idiopathic
Secondary - Hypoxic lung, cardiovascular of liver disease |
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Eccrine
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- Widely distributed
- Opens directly to skin surface - Regulate body heat |
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Apocrine
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- Axillary and genital region
- Open into hair follicles - Stimulated by stress - Responsible for body odor |
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Sebaceous Gland
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- Produces waxy substance secreted through hair follicle
- Not in palms and soles |
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Clubbing of finger causes
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Primary - Idiopathic
Secondary - Hypoxic lung, cardiovascular of liver disease |
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Eccrine
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- Widely distributed
- Opens directly to skin surface - Regulate body heat |
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Apocrine
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- Axillary and genital region
- Open into hair follicles - Stimulated by stress - Responsible for body odor |
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Sebaceous Gland
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- Produces waxy substance secreted through hair follicle
- Not in palms and soles |
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Clubbing of finger causes
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Primary - Idiopathic
Secondary - Hypoxic lung, cardiovascular of liver disease |
