Spontaneous regression of bone metastasis from renal cell carcinoma; A case report
1 Division of Thoracic Diseases, Chiba Cancer Center, Japan
2 Division of Pathology, Chiba Cancer Center, Japan
3 Department of Thoracic Surgery, Graduate School of Medicine, Chiba University, Japan
BMC Cancer 2006, 6:11 doi:10.1186/1471-2407-6-11Published: 13 January 2006
Spontaneous regression of metastatic renal cell carcinoma is rarely observed.
Metastatic renal cell carcinoma was identified in a 70-year-old male using computed tomography-guided percutaneous needle biopsy. Two months after the diagnosis, a partial resection of the sternal bone was performed. Pathological examination revealed granulated tissue with bleeding and necrosis but no carcinogenic cells.
We report a pathologically identified case in which a sternal bone metastasis that was noticed two years after radical nephrectomy regressed completely and spontaneously.