顱內(nèi)不典型表皮樣囊腫的MRI表現(xiàn)
[Abstract]:Objective to evaluate the diagnostic value of MRI in intracranial atypical epidermoid cysts. Methods 26 cases of atypical epidermoid cysts confirmed by operation and pathology were collected. The data of MRI T 1WI T 2WI, diffusion weighted imaging (DWI) and contrast enhancement were collected, and their location, morphology and signal characteristics were analyzed. Results 11 cases of epidermoid cysts were located in the ventricle, 12 cases in the cerebral parenchyma, 2 cases in the epidural area, and 1 case in the anterior part of the longitudinal fissure of the brain. It was round, irregular or lobulated, and there was no edema around it. In the ventricle, the signal intensity of the longitudinal fissure tumor was homogeneous or uneven with long T 1 and long T 2 signal. In the brain parenchyma, the signal intensity of epidural tumor was complex and varied. The signal intensity of T1WI T2WI was mixed, T1WI was high signal, or T2WI signal was low. DWI was obviously high signal intensity. Enhancement scanning was performed in 4 cases with cystic wall enhancement. Conclusion DWI combined with T _ 1WI T _ 2WI and contrast-enhanced scanning have important value in the diagnosis and differential diagnosis of intracranial atypical epidermoid cysts.
【作者單位】: 內(nèi)蒙古醫(yī)科大學第一附屬醫(yī)院影像科;
【分類號】:R739.4;R445.2
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1 張達e,
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