成软骨细胞瘤的MRI表现特点  

MRI features of chondroblastoma

作　　者：程晓光[1] 刘霞[1] 程克斌[1] 刘薇[1] 

机构地区：[1]北京积水潭医院放射科,100035

出　　处：《中华放射学杂志》2009年第5期519-521,共3页Chinese Journal of Radiology

摘　　要：目的分析成软骨细胞瘤的MRI表现特点。方法对经病理证实的20例成软骨细胞瘤的MRI信号特点、病灶形态和生长方式，以及周围骨髓和软组织有无水肿、有无骨膜反应、相邻关节有无积液等征象进行分析。结果20例病灶在T2WI和T2WI上表现为不均质的混杂信号，病灶形态为分叶状；16例病灶呈膨胀性生长；18例病灶周围出现骨髓水肿；14例病灶周围软组织水肿；6例病灶周围有骨膜反应；7例病灶突破骨皮质向周围突出；6例相邻的关节有关节积液。结论成软骨细胞瘤在MRI上多表现为分叶状和膨胀性生长，病变呈不均质混杂信号，病灶周围有明显的骨髓水肿和邻近软组织水肿。Objective To evaluate the MR imaging features of chondroblastoma. Methods MRI examinations of 20 patients with histological proven chondroblastoma were reviewed retrospectively. The MRI findings of chondroblastoma including the signal intensity, the shape, the growth patterns, and the surrounding bone marrow edema and the adjacent soft tissue edema, the periosteal reaction, the adjacent joint effusion were analyzed . Results All 20 cases demonstrated heterogeneous MR signal intensity on T1WI and T2WI images and showed lobular margins. Sixteen cases demonstrated expansive growth patterns. Surrounding bone marrow edema was found in 18 cases and adjacent soft tissue edema in 14 cases. Periosteal reaction was identified in 6 cases. In 7 cases the tumor extended to adjacent soft tissue. Adjacent joint effusion was visible on MRI in 6 cases. Conclusion Heterogeneous signal intensity, lobular margins and expansive growth pattern, adjacent bone marrow and soft tissue edema were the common features of chondroblastoma on MRI.

关 键 词：软骨母细胞瘤 磁共振成像 临床分析 患者 

分 类 号：R686[医药卫生—骨科学]