title: Pyoderma gangraenosum.
mesh_terms: D005734:Gangrene / Q000188:drug therapy / Q000209:etiology / Q000473:pathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D011241:Prednisone / Q000627:therapeutic use; D011711:Pyoderma / Q000150:complications* / Q000188:drug therapy / Q000473:pathology
chemical_list: D011241:Prednisone