PMC9633550_01
Contrast-enhanced computed tomographic scan chest in the mediastinal parenchyma window, in axial section and sagittal reformatted scan (A-C), and the bone window in axial section and sagittal reformatted scan (D-F), all showing a mass of tissue with a large zone of osteolysis of the right first rib without intrinsic calcification or infiltration of the chest wall(white arrows). No associated mediastinal lymphadenopathy or intrapulmonary infiltration was evident.
gr1.jpg
PMC9633550_01_gr1.jpg
fig0001
The thoracic computed tomography (Fig. 1) revealed a mass of tissue with a large region of osteolysis of the right first rib without invasion of the chest wall or intrinsic calcification.
Biopsied specimens showed a proliferation of monomorphic cells with eosinophilic cytoplasm and eccentric nucleus.
gr2.jpg
PMC9633550_01_gr2.jpg
fig0002
The specimens revealed a multiplication of monomorphic cells with eosinophilic cytoplasm and eccentric nucleus, positive immunostaining with anti-CD138 antibody (Figs. 2 and 3).
Positive immunostaining with anti-CD138 antibody.
gr3.jpg
PMC9633550_01_gr3.jpg
fig0003
The specimens revealed a multiplication of monomorphic cells with eosinophilic cytoplasm and eccentric nucleus, positive immunostaining with anti-CD138 antibody (Figs. 2 and 3).