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Skin of color: A basic outline of unique differences

doi: 10.1097/01.NPR.0000429835.85749.fa
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INSTRUCTIONS Skin of color: A basic outline of unique differences


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Skin of color: A basic outline of unique differences

General Purpose: The purpose of this learning activity is to provide information about the differences in the physiology, pathophysiology, and presentation of skin diseases in individuals of different races. Learning Objectives: After reading this article and taking this test you should be able to: 1. Describe the differences of skin characteristics, physiology, and pathophysiology between the races. 2. Illustrate the differences between the races in presentation and treatment of specific skin conditions.

  1. Which is true about the differences in skin among various races?
    1. UV radiation causes a higher melanocyte response in Asians and Hispanics than Whites.
    2. Darkly pigmented skin is basically skin with a deeper shade than white skin.
    3. There are more melanocytes in darkly pigmented skin than in white skin.
    4. White individuals have a more elevated response to triggers that produce melanin.
  2. Physiologically, melanin
    1. results in shades of yellow or red, known as eumelanin.
    2. results in shades of brown to black, known as pheomelanin.
    3. is produced by keratinocytes triggered by UV light.
    4. is the pigment most responsible for the color of the skin.
  3. Which race has the most melanocytes?
    1. Blacks
    2. Hispanics
    3. Asians
    4. All races have the same amount.
  4. Differences between white and black skin include:
    1. black skin has a thick, compact dermis with prominent and numerous fiber fragments.
    2. black skin tends to be less prone to hypopigmentation than white skin.
    3. the DEJ length is three times higher in Whites than Blacks.
    4. white skin has very compact bundles of collagen.
  5. Which statement about dyschromia is true?
    1. It involves a complete destruction of melanocytes and will resolve in 12 to 24 months.
    2. Currently, it is always a permanent irreversible condition despite removal of primary cause.
    3. It is a collagen disorder causing an excess of collagen fibers in the epidermis.
    4. It may be due to cutaneous inflammation and typically improves in weeks or months.
  6. What can be said about the occurrence of melasma?
    1. It is often seen with BCC and melanoma.
    2. It occurs mostly in men.
    3. It mostly involves sun-exposed facial areas.
    4. It is less common in darker skin types.
  7. Keloids
    1. occur within the confines of the injury and fade with time.
    2. may become much larger than the original trauma site.
    3. are often found on the abdomen and extremities.
    4. are not associated with pain or sensitivity.
  8. Compared to white skin, the probability of scarring among people of color is
    1. the same.
    2. 10 times lower.
    3. 15 times higher.
    4. 50 times higher.
  9. When diagnosing eczema,
    1. black skin typically has a wet, spongiotic appearance.
    2. white skin has a papular and lichenified appearance.
    3. black skin with a wet presentation has a high suspicion of infection.
    4. white skin has greater incidence of xerosis.
  10. Regarding dermatologic conditions among ethnic groups, Blacks
    1. do not get rosacea.
    2. rarely develop contact dermatitis.
    3. and Hispanics typically seek treatment for eczema or dermatitis at initial onset.
    4. have a higher rate of alopecia and eczema.
  11. SLE is
    1. typically more severe in White women than Black women.
    2. a higher risk for Black women than White women.
    3. a skin condition found in White women but not Black women.
    4. an autoimmune disease without genetic predisposition.
  12. Sarcoidosis is a/an
    1. systemic disorder that can affect almost every organ of the body.
    2. autoimmune disorder that is not commonly found in Black women.
    3. cancer-causing tumors that involve the skin and other organs.
    4. cancer that causes melanin to replicate and the skin to ulcerate.
  13. Sarcoidosis is least likely to start in the
    1. colon.
    2. lungs.
    3. lymph nodes.
    4. skin.
  14. BCC is usually
    1. found in solitary lesions in Hispanics.
    2. translucent in darker skin.
    3. associated with scars and ulcers as risk factors in darker skin.
    4. found on the abdomen in Blacks.


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