Renal Cell Carcinoma Metastasis to the Hamate Bone: A Case Report.

Renal cell carcinoma (RCC) rarely metastasizes to the carpal bones. We describe a 43-year-old woman with a history of RCC who presented with ulnar-sided wrist pain. Imaging demonstrated complete osteolytic destruction of the hamate. Treatment consisted of excision of the hamate, intralesional curettage, cement reconstruction, and internal fixation to the adjacent carpal bones and the fourth and fifth metacarpals. At 15 months of follow-up, no local recurrence, carpal instability, or implant-related complications were observed. Surgical excision with cementation and internal fixation achieved local tumor control, maintained carpal stability, and enabled early functional recovery in this rare case of hamate metastasis from RCC.