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Answers to questions on page 118
  1. Helen Williams
  1. Correspondence to Helen Williams, Department of Radiology, Birmingham Children's Hospital, Steelhouse Lane, Birmingham B4 6NH, UK; helen.williams{at}

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Question 1

The correct answer is D, in the oesophagus, there is external compression by enlarged lymph nodes. The coin is not in the trachea as it is located posteriorly on the lateral view (figures 2 (see page 118) and 6) and is, therefore, intra-oesophageal. On the frontal view (figure 5), the mediastinum is very abnormal in outline with widening of right paratracheal soft tissues (arrows) and …

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  • Competing interests None.

  • Provenance and peer review Commissioned; internally peer reviewed.