CAROL & MIKE WERNER / VISUALS UNLIMITED, INC. / SCIENCE PHOTO LIBRARY CAROL & MIKE WERNER / VISUALS UNLIMITED, INC. / SCIENCE PHOTO LIBRARY
Biomedical illustration of gout in the big toe. Uric acid crystals build up in a joint resulting in an attack of inflammatory arthritis, commonly in the big toe, and the joint becomes red, tender, hot, and swollen.
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