Androgen alopecia

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• Androgen alopecia
• Baldness
• Genetics
• Caucasian m/c almost 100 eventually
• In females, intact frontal hairline
• Starts 30-50yoa
• Rogaine-reduces rate of hair loss and may restore
  lost hair
• 20-40 recovery after 1 yr but Tx must continue
  life long and decr effectiveness w/ time

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• Freckle
• Hyperpigmented in sun-exposed areas
• Incr amt of melanin but not an incr in of
  melanocytes
• Appear before 3yoa and darken after UV exposure
• People who sunburn easily, fair skin, reddish
  hair
• 1-6mm irregular shape

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• Liver spots
• brown -caused by an INCR in of melanocytes
• multiple in sun-exposed middle aged
• 90 of people
• No Tx necessary no malig. Potential

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• ABCD for melanoma
• Asymmetry, border irregularity, color
  variegation, diameter gt6mm.
• Red, white, blue with notched border and has a
  papule or nodule w/in
• 10 are missed w/ the ABCDs
• Incr rate of occurrence faster than any other
  cancer in US
• Ages 15-50yoa m/c
• 190 chance of developing melanoma
• Cancer of melanocytes
• Risk factors sunlight, heredity, large of
  nevi, large nevi