title: An exogenous variety of pseudoxanthoma elasticum in old farmers.
abstract: Cutaneous lesions clinically similar to and histopathologically indistinguishable from pseudoxanthoma elasticum have been observed in the cubital folds of nine elderly farmers. In all cases the skin lesions were ascribed to exposure to salpeter during fertilization on a single occasion decades previously. Signs of systemic pseudoxanthoma elasticum were absent.
mesh_terms: D000368:Aged; D000382:Agricultural Workers' Diseases / Q000139:chemically induced* / Q000473:pathology; D005308:Fertilizers / Q000009:adverse effects*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009566:Nitrates / Q000009:adverse effects*; D011561:Pseudoxanthoma Elasticum / Q000139:chemically induced* / Q000473:pathology
chemical_list: D005308:Fertilizers; D009566:Nitrates