Shen W C, Lee S K
Department of Radiology, Taichung Veterans General Hospital, Taiwan, R.O.C.
J Comput Assist Tomogr. 1991 Sep-Oct;15(5):839-41. doi: 10.1097/00004728-199109000-00023.
A case of chronic osteomyelitis in the occipital bone associated with underlying chronic epidural abscess was diagnosed by skull radiography, CT, and MR. Skull radiography showed diffuse sclerosis of the occipital bone and dural calcifications. Computed tomography demonstrated thickened sclerotic changes of the osteomyelitic area, dural calcifications, and epidural fluid collection. The area of chronic osteomyelitis displayed, essentially, no signal intensity in the T1-weighted and T2-weighted MR images. The chronic epidural abscess had heterogeneous signal intensity on T1-weighted images and good enhancement after Gd-diethylenetriamine pentaacetic acid administration. On T2-weighted images the abscess had relatively homogeneous high signal intensity.
通过颅骨X线摄影、CT和MR诊断出1例枕骨慢性骨髓炎合并潜在慢性硬膜外脓肿。颅骨X线摄影显示枕骨弥漫性硬化和硬脑膜钙化。计算机断层扫描显示骨髓炎区域增厚的硬化改变、硬脑膜钙化和硬膜外积液。在T1加权和T2加权MR图像上，慢性骨髓炎区域基本无信号强度。慢性硬膜外脓肿在T1加权图像上信号强度不均匀，注射钆喷酸葡胺后强化良好。在T2加权图像上，脓肿具有相对均匀的高信号强度。
