Spontaneous mediastinal hematoma as an initial manifestation of ectopic parathyroid cystadenoma.

In short, the diagnosis ofDPB is usually difficult inmanypatients due to the non-specific clinical and radiological characteristics, in addition to the fact that it is not suspected due to its infrequency in Western countries. Nevertheless, it should be kept in mind when evaluating patients without a history of smokingwho present with exertional dyspnea, chronic productive cough, and tree-in-budpattern on chest HRCT. We would like to end by highlighting the fact that, after an exhaustive review of themedical literature, this is the first reported case of DPB originating in Spain, and it is one of the very uncommon cases described in Europe.