title: Derm DDX: Ulceration of left ankle and swelling of both legs.
authors.forename: Norman
authors.initials: N
authors.lastname: Levine
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D004487:Edema / Q000209:etiology*; D004893:Erythema Nodosum / Q000473:pathology; D006801:Humans; D007871:Leg Ulcer / Q000209:etiology*; D008297:Male; D010488:Polyarteritis Nodosa / Q000150:complications / Q000473:pathology*; D017511:Pyoderma Gangrenosum / Q000473:pathology; D013924:Thrombophlebitis / Q000473:pathology