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  1. What are the main histologic components of the dermis?
    • Below the epidermis
    • Papillary layer- Meissner corpuscle & Kause end bulb
    • Reticular layer- Pacinian & Ruffini corpuscle
  2. Compare basal cell & squamous cell carcinoma
    • Basal- most common form of skin cancer; pearly in appearance (on face)
    • Squamous- sun damaged skin; scaly spots; cancer
  3. What are the main functions of the skin?
    covers soft tissue, protection, regulate body temp, sensation from environment, water barrier, 1st line of defense, absorb UV light
  4. Define papule
    raised lesion <1cm
  5. What is scabies?
    • Skin disease cause by a mite that lives in the epidermal layer
    • Contagious and itchy
  6. Define ulcer
    any loss of surface coverage
  7. Describe folliculitis
    inflammation of the hair follicle
  8. Define nodule
    raised lesion >1cm
  9. Define macule
    flat lesion
  10. List ABCDE diagnosis of malignant melanoma
    • A- asymmetrical border
    • B- border irregularity
    • C- color change
    • D- diameter change
    • E- elevated/ expanding
  11. What is seborrheic keratosis?
    • Slightly elevated surface, rough wartlike texture
    • Rolls with skin, not anchored
    • On face, chest, shoulders, back, etc
  12. Describe carbuncle
    • Skin infection of group of hair follicles
    • Forms lump deep in skin and contains pus
  13. What is urticaria?
    • Hives
    • Itchy rash that appears/ disappears anywhere on the body
    • Associated with allergies
  14. What is albinism?
    • Hereditary inability of melanocytes to produce melanin
    • Increased possibility of skin cancer
  15. Define pustule
    pus filled blister
  16. Define wheal
    raised red itching lesion
  17. What are the histologic components of th epidermis?
    • Stratified squamous keratinized epithelium
    • Contains keratinocytes, melanocytes, Lagerhans cells, and Merkel cells
  18. Describe superficial dermatophytosis (fungal infection)
    • Ringworm, athlete's foot, jock itch
    • Can spread by touching an infected person, damp surfaces, or from a pet
  19. Describe pathology of acne and explain pathogenesis
    • Bacterial skin condition that causes pimples (whiteheads, blackheads)
    • Tiny pores in surface of skin become clogged
  20. Most important signs of skin cancer?
    • Atypical moles/ growth on skin
    • Lesions that itch, bleed or don't heal
  21. What is seborrheic dermatitis?
    Causes flaky white/yellow scales to form on oily patches of skin around scalp and ear
  22. Define bulla
    fluid filled cavity
  23. Describe furnuncle
    • Boil
    • Involves hair follicle and nearby skin tissue
  24. Compare freckle with lentigo and nevus
    • Freckle- group of melanocytes
    • Lentigo- larger group of melanocytes
    • Nevus- birthmark/mole
  25. What is ichthyosis?
    • Fish scale disease (autoimmune)
    • Scaly skin on legs and arms
    • Cycling epidermal layer faster than usual
  26. Define vesicle
    fluid filled blister
  27. Describe impetigo
    • Common bacterial infection of the skin
    • Single/many blisters filled with pus
  28. Describe psoriasis
    • Increase in number of proliferating cells in stratum basale and stratum spinosum
    • Greater epidermal thickness and more rapid renewal of epidermis
  29. Describe melanomas
    malignant tumor of melanocytes
  30. What is eczema?
    • Intensely itchy rash that appears as dry skin (autoimmune)
    • No cure and not contagious
    • Condition runs in families and often occurs with asthma and hay fever
  31. Define plaquec
    coalesced papules
  32. Describe insect bites
    • Skin reaction that lasts up to a few days
    • Different insects inject different irritants into the skin that cause irritation
Card Set:
2013-02-18 01:17:08

skin disorders
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