A resected case of solitary plasmacytoma of the rib

Abstract

Solitary plasmacytoma is a rare tumor. We report a resected case of this tumor arising from the rib. A 57-year-old man was pointed out as having an abnormal shadow on chest radiograph. Chest CT showed a tumor in the right 5th rib, the cortex of which was compressed and destroyed. On PET-CT, ¹⁸F-FDG accumulation with an SUV_max of 58.0 was seen in this tumor. No other lesions were detected. Right 5th rib resection was performed. This tumor was diagnosed as a plasmacytoma. Bone marrow biopsy showed no abnormal findings. Finally, we diagnosed this tumor as a solitary plasmacytoma arising from the right 5th rib. After resection, adjuvant therapy was not performed. At present, 32 months after the resection, the patient remains free of the disease.