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Pigmentation over abdomen in arsenic poisoning

Pigmentation over abdomen, especially marked along lineae albicantes (whitish marks in the skin, especially of the abdomen and breasts, that often follow pregnancy), in a woman with arsenic-contaminated beer. (Source: Kelynack TN, Kirkby W. Arsenical poisoning in beer drinkers. London: Baillière, Tindall and Cox, 1901. Public domain.)