Kan-hing Mak and John Ching-kwong Kwok
Department of Orthopaedics & Traumatology, Kwong Wah Hospital, Hong Kong

Intradural spinal metastasis is rare. This is the third case ever reported on the finding of intradural spinal metastasis from a renal cell carcinoma that had been removed surgically. The patient had a history of epidural metastasis for which excision and anterior stabilization were done 3 years before the new presentation with cauda equina lesion. Seeding from the involved osseous structure to the cerebrospinal fluid through the dura was believed to be the course that tumour had taken to reach the intradural space.

Key words: intradural spinal metastasis; renal cell carcinoma; cauda equina metastasis