What are the physical findings of brachioradial pruritus?

Updated: Oct 05, 2020
  • Author: Julianne Mann, MD; Chief Editor: Dirk M Elston, MD  more...
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Answer

Despite the severity of symptoms, no associated erythema or skin eruption is seen. Evidence of excoriation or lichenification may be present in the affected areas.

Altered sensation to pinprick and temperature in the distribution of the posterior cutaneous nerve of the forearm, which supplies the skin over the proximal brachioradialis muscle, may be observed. [8] Pronounced heat hyperalgesia in the C5 and C6 dermatomal distribution [9] and pinprick hyperesthesia in the C5-C8 distribution [10] may be seen.

Area of pruritus demarcated in pen in a middle-age Area of pruritus demarcated in pen in a middle-aged woman with brachioradial pruritus. Macroscopically, no skin changes are visible.
Subtle excoriations on the dorsal forearm of a mid Subtle excoriations on the dorsal forearm of a middle-aged woman with brachioradial pruritus.

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