TY - JOUR T1 - The Harlequin sign JF - Thorax JO - Thorax SP - 605 LP - 606 DO - 10.1136/thoraxjnl-2015-206936 VL - 70 IS - 6 AU - Duneesha De Fonseka AU - Adriana Lama-Lopez AU - Tim Batchelor AU - Anthony Edey AU - Nicholas A Maskell Y1 - 2015/06/01 UR - http://thorax.bmj.com/content/70/6/605.abstract N2 - A 28-year-old woman was incidentally found to have a large right apical mass (figure 1) on a chest radiograph. She denied having any respiratory symptoms but had noted asymmetric flushing of her face following strenuous exercise (figure 2). On closer questioning she also described hypohydrosis affecting the right side of her face. Figure 1 Chest radiograph showing a large right apical opacity and evidence of thinning of the right … ER -