signs, symptoms, abnormal conditions

• alopecia

  the absence of hair where it normally grows
• ecchymosis

  blue-black marks on the skin
• petechia

  small pinpoint hemorrhage
• urticaria

  an acute allergic reaction with red, round wheals on the skin
• acne

  papular and pustular eruption of skin with increased production of sebum
• burns

  injury to tissue due to heat, chemical, electric shock, lightning, or radiation

  • first to third degree burns
• cellulitis

  a diffuse acute infection of the skin
• eczema (atopic dermatitis)

  inflammation of the skin with erythematous and papulovesicular lesions caused by allergy
• exanthematous viral disease

  a rash due to virus (rubella)
• gangrene

  death of tissue with loss of blood supply
• impetigo

  contagious pyoderma caused by staph or strep
• psoriasis

  chronic recurrent dermatosis with silver gray scales that itch
• scabies

  parasitic (tiny mites) and infectious pruritus
• scleroderma

  chronic and progressive disease of the skin with hardening of connective tissue
• systemic lupus erythematosus (SLE)

  inflammatory disease of collagen in the skin, joints, and internal organs
• urticaria (hives)

  acute allergic reaction with red, round wheals develop on the skin
• tinea

  infection of the skin caused by a fungus

  tinea corporis - uneven red discs on skin

  tinea unguium - fungal infection under nails
• vitiligo

  loss of pigment in areas of the skin