What is the key aspect of history lacking required to make the diagnosis?
Occupational history. This patient has a history of working with sandblasting.
Bilateral nodules and conglomerate masses with calcifications and air bronchograms in the midzone and periphery of the upper lungs, which extend towards the hila, associated with overinflated emphysematous spaces. Cavitation is seen in both upper lobes. There is extensive mediastinal and hilar lymph node calcification.