| A | B |
|---|
| comedo | papules that occur due to blocked sebaceous glands and appear on the skin in conditions such as acne |
| open comedo; blackhead | partial blockage of a pore |
| closed comedo; whitehead | complete blockage of a pore |
| seborrheic keratosis | dark, rough lesion of the epidermis that occurs with aging |
| erythema | flushing or widespread redness of the skin |
| albinism | inherited deficiency or absence of pigment in the skin, hair, and irises due to a missing enzyme necessary for the production of melanin |
| abscess | closed pocket containing pus |
| cyst | thick-walled, closed sac or pouch containing fluid or semisolid material |
| furuncles; boils | large, tender, swollen areas caused by infection around hair follicles or sebaceous glands |
| cellulitis | acute, rapidly spreading infection within the connective tissue; characterized by malaise, swelling, warmth and red streaks |
| gangrene | death of tissue associated with loss of blood supply |
| impetigo | highly contagious bacterial infection characterized by isolated pustules that become crusted and rupture |
| seborrhea | any condition characterized by an overproduction of sebum |
| seborrheic dermatitis | inflammation that causes scaling and itching of the upper layers of skin, such as dandruff and cradle cap |
| antifungal | a medication to treat fungal infections |
| anti-inflammatory | medication to treat symptoms of inflammation |
| antibiotic | medication used to treat bacterial infection |
| debridement | removal of dirt, foreign objects, damaged tissue, etc from a wound to prevent infection and promote healing |
| incision and drainage | cutting open a lesion and draining the contents |
| lesion | abnormal area of tissue caused by injury or disease |
| wheal | smooth, swollen raised lesion that is redder or paler than surrounding skin |
| crust | collection of dried serum and cellular debris |
| abrasion / erosion | wearing away or loss of the epidermis |
| fissure | groove or crack in the skin |
| vesicle | small collection of clear fluid;blister |
| macule | discoloured, flat spot that is less than 1 cm in diameter |
| papule | small, raised lesion that is less than 1 cm in diameter and does not contain pus |
| pustule | papule that contains pus |
| nodule | solid, round or oval elevated lesion that is 1 cm or more in diameter |
| polyp | growth extending from the surface of mucous membrane |
| ulcer | open sore on the skin or mucous membrane |
| alopecia | partial or complete absence of hair from where it usually grows; baldness |
| petechiae | pinpoint hemorrhages that are less than 2 mm in diameter |
| ecchymosis | larger irregular area of purplish discolouration |
| pruritus | itching |
| urticaria | acute allergic reaction that results in red, round wheals (hives) |
| acne vulgaris | chronic inflammation of the skin characterized by papular and pustular eruptions and an increased production of sebum |
| vitiligo | loss of melanin resulting in white areas of the skin, usually in the face and hands; autoimmune |
| eczema | inflammatory skin disease with red lesions and pruritus |
| psoriasis | chronic, recurrent dermatitis marked by itchy, scaly red plaques covered by silvery gray scales |
| scabies | contagious, parasitic infection of the skin with intense itching |
| tinea | fungal infection of the skin |
| tinea corporis | fungal infection that spread out in a circle leaving normal-looking skin in the middle; ringworm |
| tinea pedis | fungal infection of the feet; athlete's foot |
| callus | thickening of the skin caused by repeated rubbing |
| corn | callus that has developed a hard core |
| keloid | abnormally raised or thickened scar that expands past the boundaries of the original incision |
| verruca | epidermal growth (wart) caused by a virus |
| nevus | small dark skin growth that develops from melanocytes |
| dysplastic nevi | atypical moles that may develop into skin cancer |
| burn | injury caused by energy (heat, flame, electricity, etc) |
| first degree burn | burn that causes superficial damage to the epidermis, no blistering |
| second degree burn | partial - thickness burn; causes blisters and damage to the top two layers of skin |
| third degree burn | full-thickness burn; causes damage to epidermis, subcutaneous tissue, and possibly underlying muscle |
| decubitous ulcer | bedsore |
| scleroderma | an autoimmune disorder in which connective tissues become thickened or hardened |
