Open Access單一的硬膜內脊髓外脊髓圓錐位置上的腎臟細胞癌轉移
Author(s) -
Lin TzuKang,
Chen ShuMei,
Jung ShihMing
Publication year - 2011
Publication title -
the kaohsiung journal of medical sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.439
H-Index - 36
eISSN - 2410-8650
pISSN - 1607-551X
DOI - 10.1016/j.kjms.2010.05.001
Subject(s) - medicine , conus medullaris , cauda equina , renal cell carcinoma , metastasis , laminectomy , spinal cord , radiology , spinal cord neoplasm , magnetic resonance imaging , surgery , pathology , cancer , psychiatry
We report the case of a 68‐year‐old man with a 6‐year history of renal cell carcinoma (RCC), who presented with severe low backache and paraparesis for a month before admission. In addition, he experienced urinary retention for 2 weeks. A spinal magnetic resonance imaging scan revealed the presence of an intradural extramedullary solitary mass at the conus medullaris. We performed a laminectomy and completely excised the tumor. The histopathological findings were suggestive of spinal metastasis of RCC. After the operation, the patient did not complain of backache and urinary retention, and paraparesis improved significantly. Spinal metastases of RCC are usually extradurally located. Intradural metastases of RCC are rare. Thus far, only six cases of RCC metastasizing to the cauda equina have been reported; however, RCC metastasis to the conus medullaris has not yet been reported. Conus medullaris lesions may cause symmetrical motor and sensory deficits accompanied by early autonomic system impairment. Surgery is the treatment of choice in cases of resectable RCC metastases, especially in cases of solitary metastasis.