II. Epidemiology

  1. Affects Caucasians living in tropical regions
  2. More common in middle-aged women

III. Pathophysiology: Postulated Mechanisms

  1. Cervical Disc Disease with nerve compression
    1. Heyl (1983) Arch Dermatol 119:115-6 [PubMed]
  2. Prolonged ultraviolet light exposure (e.g. tropics)
    1. Walcyk (1986) Br J Dermatol 115(2):177-80 [PubMed]

IV. Symptoms

  1. Onset often in mid-summer and resolution in December
  2. Pruritus of one or both arms
    1. Affects lateral upper arms and Shoulders
    2. Affects dorsal Forearms
  3. Other Paresthesias (tingling or burning)

V. Signs

  1. No associated dermatitis

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