title: Recognizing peristomal pyoderma gangrenosum.
mesh_terms: D003125:Colostomy / Q000009:adverse effects; D005260:Female; D005734:Gangrene; D006801:Humans; D008875:Middle Aged; D011711:Pyoderma / Q000175:diagnosis* / Q000209:etiology / Q000473:pathology