| A | B |
|---|
| lesion | Area of damaged skin |
| crust | collection of dried serum and cellular debris. (exudate) |
| cyst | Closed sac or pouch containing fluid |
| pilonidal cyst | found over the sacral area and contains nest of hairs |
| erosion | wearing away or loss of epidermis (similar to a 'rug burn'. |
| fissure | groove or crack-like sore |
| macule | discolored, flat lesion |
| nodule | solid, elevated mass, >1cm. |
| papule | small, solid elevated mass. (pimple) |
| polyp | mushroom-like growth |
| pustule | small abscess on the skin |
| ulcer | open sore |
| vesicle | small blister |
| bullae (bulla, sing) | large blisters |
| wheal | smooth, slightly elevated, swollen area, like you get with insect bites.. |
| ecchymosis (ecchymoses-pl) | black and blue mark on the skin |
| petechia (petechiae - pl) | small, pinpoint hemorrhage |
| pruritus | itching |
| purpura | merging ecchymoses & petchiae. |
| urticaria | hives |
| alopecia | baldness |
| alopecia areata | hair falls out in patches |
