title: Polyarteritis nodosa: an unusual cause of facial pain and swelling.
mesh_terms: D000328:Adult; D004487:Edema; D005157:Facial Pain / Q000209:etiology*; D005260:Female; D006801:Humans; D008410:Masticatory Muscles / Q000473:pathology*; D010488:Polyarteritis Nodosa