Sherman J L, Citrin C M, Barkovich A J
J Comput Assist Tomogr. 1987 May-Jun;11(3):407-11. doi: 10.1097/00004728-198705000-00007.
The magnetic resonance (MR) examinations of 65 patients with syringomyelia were evaluated to determine the incidence and MR characteristics of syringobulbia. Syringobulbia was identified in 11 patients (17%), 10 of whom had communicating syringomyelia (associated with the Chiari I malformation) and one idiopathic syringomyelia. The cavities extended from 5 to 20 mm above the plane of the foramen magnum. Two types of syringobulbia were identified. The 10 patients with Chiari I malformation had thin clefts or slits extending into the medulla. These cavities were much smaller than the cervical cavities. The other patient had saccular syringobulbia in which the medullary cavity was similar to the cervical syrinx cavity. The T1-weighted images were most useful in detection of syringobulbic cavities. The theory of syringobulbia development and a brief review of the literature are included.
对65例脊髓空洞症患者的磁共振（MR）检查进行评估，以确定延髓空洞症的发生率及MR特征。11例患者（17%）发现有延髓空洞症，其中10例为交通性脊髓空洞症（与Chiari I畸形相关），1例为特发性脊髓空洞症。空洞在枕骨大孔平面上方5至20毫米处延伸。确定了两种类型的延髓空洞症。10例患有Chiari I畸形的患者有延伸至延髓的细裂缝或裂隙。这些空洞比颈段空洞小得多。另1例患者有囊状延髓空洞症，其中延髓空洞与颈段脊髓空洞相似。T1加权图像对检测延髓空洞最有用。文中包括了延髓空洞症的发展理论及文献简要回顾。
