Fourney Daryl R, Gokaslan Ziya L
Division of Neurosurgery, Royal University Hospital, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
Neurosurg Focus. 2003 Aug 15;15(2):E9. doi: 10.3171/foc.2003.15.2.9.
Sacral chordomas are relatively rare, locally invasive, malignant neoplasms. Although metastasis is infrequent at presentation, the prognosis for patients with chordoma of the sacrum is reported to be poor and attributable in most cases to intralesional resection. The value of adjuvant treatment is uncertain, and resection remains the primary mode of treatment. Chordomas are difficult to excise completely, but recent improvements in imaging and surgical techniques have allowed surgeons to perform more frequently en bloc sacral resections with wide surgical margins. The technical challenges of such operations, and the functional costs for the patient (with respect to anorectal and urogenital dysfunction) are significantly increased when the tumor involves high sacral levels. The authors review the clinical presentation and natural history of sacral chordoma and discuss the current treatment techniques and outcomes.
骶骨脊索瘤是相对罕见的、局部侵袭性恶性肿瘤。虽然初诊时转移并不常见,但据报道,骶骨脊索瘤患者的预后较差,在大多数情况下是由于瘤内切除所致。辅助治疗的价值尚不确定,手术切除仍是主要的治疗方式。脊索瘤难以完全切除,但近年来影像学和手术技术的进步使外科医生能够更频繁地进行骶骨整块切除,手术切缘较宽。当肿瘤累及高位骶骨时,此类手术的技术挑战以及给患者带来的功能代价(涉及肛门直肠和泌尿生殖功能障碍)会显著增加。作者回顾了骶骨脊索瘤的临床表现和自然病程,并讨论了当前的治疗技术及治疗效果。