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actinic purpura; solar purpura; senile purpura

Etiology: - photoaging Pathology: - weakness of perivenular connective tissue - dermal atrophy Clinical manifestations: 1) occurs on sun-exposed areas of skin, especially forearms 2) initiated by minor trauma or unrecongnized event 3) irregularly-shaped, well demarcated violaceous macules 4) variable size, a few millimeters to several centimeters 5) lesions asymptomatic 6) lesions persist for many weeks * images [4] Laboratory: - no testing indicated [2] Management: - no effective treatment - sun protection, sunblock, sunscreen

General

purpura; retiform purpura

References

  1. Gilchrest BA, Aging of the Skin, In: Principles of Geriatric Medicine, 4th ed,, Hazzard et al (eds), McGraw-Hill, NY, 1999, pg 573-602
  2. Medical Knowledge Self Assessment Program (MKSAP) 17, 18, 19. American College of Physicians, Philadelphia 2015, 2018, 2021. - Medical Knowledge Self Assessment Program (MKSAP) 19 Board Basics. An Enhancement to MKSAP19. American College of Physicians, Philadelphia 2022
  3. Schwartz RA, James WD Medscape: Actinic Purpura http://emedicine.medscape.com/article/1087008-overview
  4. DermNet NZ. Senile purpura (images) http://www.dermnetnz.org/vascular/senile-purpura.html