Chordomas and Their Consideration in the Radiographic Differential of Extra-Axial Lesions of the Central Nervous

• 作者: Anousheh Sayah Danielle Brewington Eric L. Zager Jayesh P. Thawani Shih-Shan Lang Sriram Venneti Stephen J. Dante
• 来源期刊: 现代神经外科学进展(英文)
• 学科: 医学
• 关键词: CHORDOMA Primitive NOTOCHORD TUMOR Extra-Axial TUMOR Spine
• 年，卷（期）: 2012,（3）
• 页码范围: 58-62
• 页数: 5页
• 分类号: R73

摘要

Due to the rare occurrence of chordomas extra-axially, these lesions have not earned a great deal of consideration in the clinical and radiographic differential diagnoses of extra-axial paraspinal lesions. We describe a case of a patient with a surgically resected extra-axial chordoma and review the radiologic characteristics of chordomas as an entity in the spectrum of extra-axial lesions. A 47-year-old man presented to our institution with four months of intermittent parethesias, pain, and subjective weakness in the left leg. MR imaging of the lumbar spine demonstrated a large heterogeneously- enhancing paraspinal lesion extending from the left L3-4 neural foramen into the psoas muscle. The patient underwent a CT-guided needle biopsy demonstrating features consistent with a chordoma. He then underwent a left retroperitoneal approach and en bloc resection of the lesion from the vertebral column. Pathology confirmed chordoma as the diagnosis. EACs are a rare but important consideration in the diagnosis of extra-axial lesions of the central nervous system.