FINDINGS:
The vertebral body heights and alignment appear maintained. Degenerative changes are seen and described below. No suspicious marrow signal abnormality. The conus terminates near approximately the L1 level.
L1-L2: No significant disc protrusion, bony canal or foraminal narrowing.
L2-L3: Slight disc bulging. No significant bony canal or foraminal narrowing.
L3-L4: Mild disc bulging. Mild right foraminal narrowing. No significant bony canal narrowing.
L4-L5: Mild disc bulging eccentric right with slight inferior extension of disc in the right paracentral region and mild impression on the ventral thecal sac and near the course of the descending right L5 nerve root. Mild degenerative facet disease and ligamentum flavum hypertrophy. Mild canal narrowing. Mild bilateral foraminal narrowing.
L5-S1: Mild disc bulging, and there appears to be slight inferior extension of disc in the right paracentral region near the course of the descending right S1 nerve root, incompletely included on the axial images. Mild degenerative facet disease. Mild bilateral foraminal narrowing. No significant bony canal narrowing.
IMPRESSION:
1. Degenerative changes of the lumbar spine, most conspicuous at L4-L5 and L5-S1 as above.
2. Additional findings as above
發現：
椎體高度和排列似乎保持不變。退行性變化見並描述如下。無可疑骨髓信號異常。圓錐在大約 L1 水平附近終止。
L1-L2：無明顯椎間盤突出、骨管或椎間孔狹窄。
L2-L3：輕微的圓盤凸起。沒有明顯的骨管或椎間孔狹窄。
L3-L4：輕度椎間盤突出。輕度右側椎間孔狹窄。沒有明顯的骨管狹窄。
L4-L5：輕度椎間盤突出偏向右側，右側旁中央區椎間盤輕微向下延伸，腹側硬膜囊和右 L5 降神經根附近有輕度壓印。輕度退行性小關節疾病和黃韌帶肥大。輕度管狹窄。雙側椎間孔輕度狹窄。
L5-S1：輕度椎間盤膨出，在右S1降神經根走行附近的右側中央旁區域似乎有輕微的椎間盤向下延伸，軸位圖像不完整。輕度退行性小關節疾病。雙側椎間孔輕度狹窄。沒有明顯的骨管狹窄。
印象： 1.腰椎退行性改變，如上L4-L5和L5-S1最為明顯。 2. 上述其他發現。
