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Solitary intradural extramedullary metastasis of renal cell carcinoma to the conus medullaris.
Kaohsiung J Med Sci. 2011 Jan; 27(1):45-8.KJ

Abstract

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.

Authors+Show Affiliations

Department of Neurosurgery, Chang Gung Memorial Hospital at Linkou, Chang Gung University, Kweishan, Taoyuan, Taiwan. tklin100@cgmh.org.twNo affiliation info availableNo affiliation info available

Pub Type(s)

Case Reports
Journal Article

Language

eng

PubMed ID

21329893

Citation

Lin, Tzu-Kang, et al. "Solitary Intradural Extramedullary Metastasis of Renal Cell Carcinoma to the Conus Medullaris." The Kaohsiung Journal of Medical Sciences, vol. 27, no. 1, 2011, pp. 45-8.
Lin TK, Chen SM, Jung SM. Solitary intradural extramedullary metastasis of renal cell carcinoma to the conus medullaris. Kaohsiung J Med Sci. 2011;27(1):45-8.
Lin, T. K., Chen, S. M., & Jung, S. M. (2011). Solitary intradural extramedullary metastasis of renal cell carcinoma to the conus medullaris. The Kaohsiung Journal of Medical Sciences, 27(1), 45-8. https://doi.org/10.1016/j.kjms.2010.05.001
Lin TK, Chen SM, Jung SM. Solitary Intradural Extramedullary Metastasis of Renal Cell Carcinoma to the Conus Medullaris. Kaohsiung J Med Sci. 2011;27(1):45-8. PubMed PMID: 21329893.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Solitary intradural extramedullary metastasis of renal cell carcinoma to the conus medullaris. AU - Lin,Tzu-Kang, AU - Chen,Shu-Mei, AU - Jung,Shih-Ming, Y1 - 2011/01/28/ PY - 2010/02/22/received PY - 2010/05/26/accepted PY - 2011/2/19/entrez PY - 2011/2/19/pubmed PY - 2011/6/2/medline SP - 45 EP - 8 JF - The Kaohsiung journal of medical sciences JO - Kaohsiung J Med Sci VL - 27 IS - 1 N2 - 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. SN - 2410-8650 UR - https://www.unboundmedicine.com/medline/citation/21329893/Solitary_intradural_extramedullary_metastasis_of_renal_cell_carcinoma_to_the_conus_medullaris_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1607-551X(10)00022-7 DB - PRIME DP - Unbound Medicine ER -
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