PMC6346800_01
(a) Conventional and thermographic images on arrival when the warmest area at the ankle was 35 C.. (b) Conventional and thermographic images after 1 hour when, the warmest area at the ankle was 37 C, showing a distal decrease and proximal increase in surface temperature.
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Upon arrival at the ED, both conventional and thermographic images were taken with the patient's consent (Fig. 1a). Imaging repeated after 1 hour showed progression of the infection (Fig. 1b).