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Study Design. This is a report of a man with carcinoma of the anus and intradural metastasis to the cauda equina. Objective. To perform a laminectomy with tumor removal for relief of pain. Summary of Background Data. Only 25 cases of intradural spinal metastasis have been reported in the English literature. This is the first report of a metastatic case, moving from the carcinoma of the anus to the cauda equina. Methods. Magnetic resonance imaging showed an ill-defined mass, with central necrosis, to the cauda equina. The possibility of intradural metastasis to the cauda equina was indicated by unique pain symptoms. Results. The patient's back pain subsided after total laminectomy of L3-L5 with subtotal removal of the tumor. The residual tumor became smaller with postoperative radiation. Conclusion. Magnetic resonance imaging is a good diagnostic choice in this situation. The cause of the metastasis was unclear, but is was presumed to have occurred through the perineural lymphatic ducts. Laminectomy with tumor removal is feasible for relieving pain and demonstrating pathology.

Study design This report analyzed the likely locations of lesions that cause a combination of Horner's and Brown-Sequard syndromes. One must know the anatomic structure of spinal cord and the sympathetic nerve chain. Objectives A hypertensive patient had Brown-Sequard and Horner's syndromes after neck trauma. The magnetic resonance imaging and surgical findings showed the correlation between the clinical symptoms and the likely lesion. Methods The patient underwent right hemilaminectomy from C2 to C6 with total removal of hematoma. Conclusion The spinal epidural hematoma rarely is a surgical emergency. The patient presented with Brown-Sequard and Horner's syndromes. Magnetic resonance imaging made a rapid and correct diagnosis. The patient received an emergent right hemilaminectomy from C2 to C6 with removal of hematoma and subsequently made a complete recovery.