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Objective To investigate the MRI features of supratentorial solid hemangioblastoma and to improve its diagnostic accuracy.Methods MRI image manifestations of 7 cases with supratentorial solid hemangioblastoma confirmed by operation and pathology were analyzed retrospectively.Results 7 cases of supratentorial solid hemangioblastoma were solitary.All tumors appeared as round or quasi-round masses with clear boundary, and showed equal or long T1 signal and slight long or long T2 signal,the obvious enhancement was seen in all tumors.There was mild to moderate edema around the tumors.The blood vessel was found within or around the tumors.Conclusion MRI manifestations of supratentorial solid hemangioblastoma have certain characteristics.
RESUMO
Objective To explore the MRI findings of Wernicke encephalopathy so that to improve the knowledge of this disease.Methods MRI data of Wernicke encephalopathy in 7 cases were retrospectively analyzed.Results Symmetrical abnormal signal intensity was appeared in bilateral thalamus and the area around the third cerebral ventricle in 6 cases,in the area around aqueduct and pontine in 7 cases and in mammillary body,hypothalamus,fornix and the four cerebal ventricles in 2 cases.Above mentioned lesions showed long T1 and long T2 signal intensity and high signal intensity on fluid-attenuated inversion recovery(FLAIR),and high signal intensity on DWI in 2 cases.The lesions were enhanced in 2 cases and small vessels were radial enhancement around lateral ventricle in 1 case after administration of Gd-DTPA.Conclusion Wernicke encephalopathy has definite MR imaging findings,which is of important value in clinical diagnosis and treatment.