脊柱孤立性浆细胞瘤的CT表现分析

Analysis of CT manifestation of solitary plasmacytoma of spine

目的探讨脊柱孤立性浆细胞瘤的CT诊断价值。方法回顾性分析8例经病理证实的脊柱孤立性浆细胞瘤病例的CT表现，并复习相关文献。结果①3例累及颈椎（37。5％），4例累及胸椎（50％），1例累及腰椎（12．5％）；4例侵犯椎体，4例同时侵犯椎体及附件；②CT表现：椎体或／及附件虫蚀样骨质破坏区内见残余的斑点状及线样骨嵴（8／8）；破坏区周围骨皮质可发生增生硬化（6／8）；肿瘤在椎旁及椎管内形成软组织肿块（5／8）；肿瘤突破椎体终板致骨皮质断裂（4／8）。结论单椎体病变CT上有以下表现时：骨质破坏区内残存骨嵴、周围骨皮质增生硬化、椎旁及椎管内软组织肿块、椎体终板裂隙样断裂，需重点考虑脊柱孤立性浆细胞的诊断。

Objective To evaluate CT findings of solitary plasmaeytoma of spine. Methods Eight patholngieally proven eases of solitary plasmaeytoma of spine were retrospectively reported..Their CT findings and relevant literatures were reviewed. Results （1）There were 3 eases at cervical vertebrae（37.5% ） ,4 eases at thoracic vertebrae（50% ）and 1 ease at lumbar vertebrae （ 12.5% ） ;4 eases encroach vertebrae and 4 eases encroach vertebrae and affiliated bone;（2） CT manifestation：There were residu ally stippled and linear bony ernst in lyric lesion of vertebrae and affiliated bone（8/8） ; Cortleal bone oeeured hyperplasia and sclerosis（6/8） ; Tumor formed paravertebral and intraspinal soft tissue mass（5/8） ; Tumor broke terminal plate of vertebrae made cortical bone broken（4/8）. Conclusion When the vertebral lesion in CT has these following findings： residually bony crest in lyric lesion of bone, cortical bone oeeured hyperplasia and sclerosis, paravertebral and intraspinal soft tissue mass and terminal plate of vertebrae broken, we should preferentially consider the diagnosis of solitary plasmaeytoma of spine.