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| MRI diagnosis of the third ventricular masses |
| LI Xin-ming1, JIA Hong-shun1, REN Yun-yan2, SHI Da1, YAN Chao-qun1,YUAN Yang-guang1, LI Shi-si1, LIANG Wen1, QUAN Xian-yue1 |
1. Department of Radiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China;
2. Department of PET Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China |
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Abstract Objective: To investigate MRI features of masses in third ventricle. Materials and Methods: The MRI findings of 48 patients with third ventricular masses were reviewed retrospectively. Forty-six cases were proved by pathology and 2 cases with metastasis which the primary tumors were proved. Results: There were 22 cases third ventricle masses and 26 cases lesions distorting or invading the third ventricle. Based on the angle between tumors and third ventricular wall and whether had clear margin with peritumor tissue could distinguish intraventricular masses and lesions distorting or invading the third ventricle. Most tumors in the third ventricle had age characteristics. The arachnoid cyst, ependymal cyst, choroid plexus papilloma, craniopharyngioma, germ cell tumors and primitive neuroectodermal tumor frequently occurred in children and teenagers. MRI manifestations of different tumors were different, some of them had characteristic manifestations. Conclusion: Magnetic resonance imaging can distinguish between intraventricular masses and lesions distorting or invading the third ventricle. Diagnostic accuracy can be improved by combining with patient’s age and MRI manifestations.
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Received: 28 June 2016
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