PMC5971381_01
(a) Mottled erythema on the dorsal surface of the hands. (b) Significant edematous changes to the hand and digits.
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His mother brought photos of the patient's hands when he was having a reaction (Figure 1).
Fluorescence scan at 634 nm, confirming abundant porphyrin.
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A fluorescence scan was performed; there was prominent fluorescence of red blood cells, indicating elevated protoporphyrin in the erythrocytes (Figure 2).