Solitary plasmacytoma of the left rib misdiagnosed as angina pectoris: A case report

Figure 1 Chest X-ray. No significant cardiopulmonary abnormalities were seen.

Figure 2 Comparison of computed tomography (CT) images of left eighth rib mass before and after surgery. A: CT scan of lung before surgery showed that the left eighth rib mass was accompanied by bone destruction (orange arrow); B: Lung CT scan after surgery showed changes after resection of the left eighth rib (orange arrow).

Figure 3 Postoperative pathology showed that a large number of immature plasma cells proliferated after decalcification (HE, × 400).

Figure 4 Immunohistochemical staining showed diffuse CD 138(+) in the tumor cell membrane (× 100).

Figure 5 Pathology of rib biopsy. A: The pathological findings of rib biopsy showed that it was mainly striated muscle tissue, with a small amount of connective tissue, skin and bone tissue, and short spindle cells (HE, × 100); B: Rib biopsy pathology showed that under high magnification, some cells were short spindle-shaped, and the nuclei were slightly dark stained, with non-nuclear divisions (HE, × 400).