Skin Flashcards
Macular
Small, flat colour change Less than 1cm Ex. Freckles
Patch
Flat colour change More than 1cm
Papule
Shallow Ex. Nevus (mole)
Nodule
Deeper into dermis
Tumor
Larger, firm or soft
Urtricaria
Hives (wheals)
Vesicle
Fluid filled, raised Less than 1cm Ex. Mosquito bite
Bulla
Fluid filled, raised Greater than 1cm Ex. Blister
Cyst
Fluid filled, encapsulated Into dermis this tighter surface
Pustules
Not clear liquid (white or yellow)
Crust Lesion
Dried sebum, pie, or blood
Scale
Compact flakes of skin
Ulcer
Extends into dermis
Fissure
Linear cleavage
Excoriation
From an external source Reddening, rubbing
Atrophic Scar
Depression
Lichenification
Tightly packed papules Result of scratching
Laceration
Cut
Keloid
Hypertrophic scar Elevated & extended
Hemangioma
Raised from blood vessels
Port-wine stain
Flat on epidermis
Telangiectases
Blood vessels permanently dilated on surface Ex. Spider avulsions
Purpuric Lesion
Caused by blood flowing out of breaks in vessels and depositing in the tissue (extravascularly).
ie. Petechiae- red dots from blood vessels
ie. Purpura - petechiae become confluent patch
ie. Ecchymosis - bruise
Annular
Circular pigmentes lesion
Confluent
Pigmented lesions merge together, with no discernible outlines. Ex. Hives