Mediastinal ganglioneuroma mimicking a bronchogenic cyst.

A 75-year-woman with a Duke’s B adenocarcinoma of the caecum underwent a staging CT examination which revealed an oval, 3.6×2.5 cm fluid attenuation mass (18 Hounsfield units) superior to the carina, posterior to the trachea and medial to the oesophagus (figure 1). She had no symptoms relating to the mediastinal mass. Radiologically the lesion was thought to be most in keeping with …