Terminology Flashcards
Describe a macule.
Primary lesion
- flat
- <1cm (small)
- must be different color
Describe a patch.
Primary lesion
- flat
- >1cm
- must be different color
(large macule)
Describe a papule.
Primary lesion
- raised
- <1cm (small)
- no fluid
(raised macule)
Describe a nodule.
Primary lesion
- raised (rounded?)
- >1cm (larger)
- no fluid
Describe a plaque.
Primary lesion
- raised (plateau-like)
- >1cm (larger)
- no fluid
Describe a vesicle.
Primary lesion
- raised
- <1cm (small)
- fluid filled
(fluid filled papule)
Describe a pustule.
Primary lesion
- raised
- <1cm (small)
- pus filled
(pus filled vesicle)
Describe a bulla.
Primary lesion
- raised
- >1cm
- fluid filled
(large vesicle)
Describe a scale.
Secondary lesion
- flaky
- dry
Describe a crust.
Secondary lesion
-dried exudate (pus, blood, serous fluid)
Describe a fissure.
Secondary lesion
-linear break through epidermis into dermis
(as opposed to ulcer which is a loss
Describe an ulcer.
Secondary lesion
-loss of portion of epidermis and some dermis
(as opposed to an erosion which does not go through basement membrane or involve dermis)
Describe an erosion.
Secondary lesion
-loss of epidermis (fully or partially), but basement membrane intact
(as opposed to an ulcer which is through basement membrane)
Describe an excoriation.
Secondary lesion
-mechanical abrasion
Describe a necrosis.
Secondary lesion
-area of dead skin