History:A75-year-oldmanpresentswithheadaches.
病史：老年男性，75岁，头痛。
SagittalandaxialT1pre-andpostcontrast,axialT-weighted,andaxialfluid-attenuatedinversion-recovery(FLAIR)MRimagesareshownbelow.
矢状、轴位T1平扫及增强，轴位TWI、轴位FLAIR图像如下所示。
Findings
Thereisasimple,intra-axialcystwithsmoothcontoursintheanteriorleftfrontalwhitemattermeasuringupto.9cm.Thereisnoabnormalenhancementorsurroundingparenchymalsignalabnormality.Thereisno治白癜风北京最好的医院是哪里北京中医白癜风医院哪家最好
