40例脊柱肿瘤CT表现

目的 :探讨CT对脊柱肿瘤的诊断及鉴别诊断价值。方法 :回顾性分析了行CT检查并经临床或手术病理证实 4 0例脊柱肿瘤患者的临床资料。结果 :2 2例转移瘤共累及 32个脊椎 ,CT表现为骨质破坏的占 2 5 /32 ,成骨型占 4 /32 ,混合型占 3/32。在溶骨型转移中 ,18个病灶位于椎体后 2 /3,18个病灶同时累及椎弓及附件。 16例伴周围软组织肿块 (12例为局限性 )。 4例骨巨细胞瘤和 1例动脉瘤样骨囊肿均表现多房膨胀性骨质破坏。 3例血管瘤显示为网眼状影像中夹杂低密度脂肪。 3例神经纤维瘤均显示骶孔扩大。 2例骨髓瘤表现为椎体及附件膨胀性溶骨破坏 ,骨皮质完整或破坏。脊索瘤、骨软骨瘤、畸胎瘤、软骨肉瘤及恶性纤维组织细胞瘤各 1例。在CT上也各有特点。结论 :CT在明确病灶部位和范围及定性方面具有很大价值

CT Findings of Spine Tumor of 40 Cases

Objective To study CT findings in spine tumor of 40 cases and evaluate CT in diagnosis and differentiate diagnosis of spine tumor.Methods Forty patients of spine tumor proven clinically or surgico pathologically were retrospectively evaluated by CT.Results Metastatic tumor 22 cases (32 vertebras involved),CT demonstrated osteolytic lesion in 25 vertebras (25/32),osteoblastic lesion in 4 vertebras (4/32),combined osteolytic and blastic metastasis in 3 vertebras (3/32).In the patients with osteolytic metastasis,15 lesions located in the posterior 2/3 portion of the vertebral body,among these 18 lesions involved the posterior structuretoo,and 16 lesions with the soft tissue mass extension from the bone into the paraspinal tissue (12 limitation).Four patients of giant cell tumor or one patient of aneurysmal bone cyst demonstrated multilocular and expansile destructive area.Three patients of hemangioma presented meshlike changes with low density fat in the vertebral body.Three patients of neurofibroma showed enlarging of the sacral foramina.Two patients of myeloma showed expansile osteolytic bone destruction with complete of incomplete cortex in the vertebral body or appendix.This paper reported 5 patients besides,they were chordoma, osteochondroma,teratoma,chondrosarcoma and malignant fibrous histiocytoma one case respectively,and can be met in incidentally.Conclusions CT can provide more information about the exact site of origin,extent and nature.