(Fig 1 and 2)Erythrasma.-A superficial bacterial infection of the skin, usually involving intertriginous areas of the body, especially the toe-webs, erythrasma pro¬ duces superficial scaling and cracking and some¬ times marked pruritus while at other times none ( Fig 3 ). The responsible organism produces a porphyrin that fluoresces a bright pink-orange under the Wood's lamp, which makes identification sim¬ ple (Fig 4) (Fig 5). A liver biopsy from a patient with this disorder usual¬ ly fluoresces the pink-orange of uroporphyrin.From the