What are the physical findings of edema in acute urticaria (hives)?

Updated: Mar 21, 2018
  • Author: Henry K Wong, MD, PhD; Chief Editor: Michael A Kaliner, MD  more...
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Edema can be observed by slightly stretching the skin to demonstrate whitish centers. Occasionally, large annular urticarial lesions as large as 30 cm in diameter with polycystic borders are observed.

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