Multiple myeloma (MM) is a clonal proliferation of plasma cells with multiple osteolytic lesions. Multiple myeloma in the thorax is relatively uncommon. Hereby, we present 2 cases of multiple myeloma involving the thorax (1) in a 55 years old nonsmoker, female (2) and in a 45-years-old, smoker, male.
In thoracic imaging, mass means any pulmonary, pleural, or mediastinal lesion more than 3 cm in diameter (without regard to contour, border, or density characteristics). Nodule means rounded opacity, well or poorly defined, measuring up to 3 cm in diameter. We report 4 rare casespresented as mass or nodular lesion in chest imaging.
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