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Figure 8. Case 11: Thoracic duplication cyst. 99Tcm-pertechnetate scintigraphic serial images at (a) 15 min, (b) 4 h and (c) 24 h showing an intrathoracic photopenic area in the right hemithorax on the early image, which is seen to fill up with tracer on the 24 h delayed image. (d) Chest radiograph posteroanterior view shows a well-defined posterior mediastinal mass in the right paratracheal region. (e) Contrast enhanced axial CT chest seen on the mediastinal window shows a well circumscribed fluid attenuating, non-enhancing mass in right paratracheal location.
