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. Author manuscript; available in PMC: 2013 Jul 1.
Published in final edited form as: J Thorac Imaging. 2012 Jul;27(4):249–254. doi: 10.1097/RTI.0b013e318256951e

Fig 2.

Fig 2

There is an ill-defined opacity in the right apex adjacent to the lateral pleural surface (arrow). All the readers recognized the abnormality, but some readers considered this as a focal opacity (NCN), others as apical pleural thickening. Their level of suspicion and follow up recommendation correlated with their interpretation of the abnormality.