Primary pulmonary plasmacytoma mimicking lung cancer diagnosed on endobronchial ultrasound (EBUS)-guided biopsy

A 77-year-old woman presented with progressive breathlessness on exertion. Chest radiograph showed a smooth right apical mass and CT of the chest confirmed a bilobed, well-defined right apical mass (figure 1). Positron emission tomography-CT showed a right apical soft tissue mass with marked fluorodeoxyglucose uptake (standardised uptake value max 8.6) with chest wall and likely mediastinal invasion (figure 2). The patient was referred for endobronchial ultrasound (EBUS) and a right paratracheal mass …