title: Erythema elevatum diutinum--a report of two unusual patients.
mesh_terms: D000328:Adult; D000368:Aged; D002131:Calcium Pyrophosphate / Q000378:metabolism; D003937:Diagnosis, Differential; D004890:Erythema / Q000378:metabolism / Q000473:pathology*; D005260:Female; D005533:Foot Dermatoses / Q000473:pathology; D006229:Hand Dermatoses / Q000473:pathology; D006801:Humans; D008297:Male; D012867:Skin / Q000378:metabolism / Q000473:pathology
chemical_list: D002131:Calcium Pyrophosphate