title: Images in clinical medicine. Harlequin's darker side.
authors.affiliation: Royal Victoria Infirmary, Newcastle upon Tyne NE1 4LP, United Kingdom. martin.duddy@nuth.nhs.uk
authors.forename: Martin E
authors.initials: ME
authors.lastname: Duddy
authors.forename: Mark R
authors.initials: MR
authors.lastname: Baker
mesh_terms: D000328:Adult; D001342:Autonomic Nervous System Diseases / Q000209:etiology; D005260:Female; D005483:Flushing / Q000209:etiology*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008479:Mediastinal Neoplasms / Q000150:complications / Q000175:diagnosis*; D009408:Nerve Compression Syndromes / Q000209:etiology; D009455:Neurofibroma / Q000150:complications / Q000175:diagnosis*; D013577:Syndrome