往期相关链接:
颅内动静脉畸形、动脉瘤、海绵状血管瘤
History:A36-year-oldmanpresentswithnew-onsetseizures.
病史:36岁男性,癫痫发作。
AheadCTscanwasperformed.行颅脑CT平扫。
MRimagesAcontrast-enhancedMRIscanofthebrainwasperformed.Inorder:AxialT-weightedfluid-attenuatedinversion-recovery(FLAIR),axialdiffusion-weighted(DWI),twoaxialgradient-recalledecho(GRE),axialT1-weightedpostcontrast,andcoronalT1-weightedpostcontrastimages.
行颅脑增强MR,各序列如下面图中所示。
Findings
CT:Therearemultiplefocalhyperdenselesions,includingalargelesionwithfociofcalcificationintherightcoronaradiata.Thereisnoassociatedmasseffect.
MRI:TherearemultipleThypointensebrainlesionswithmarkedsusceptibilityartifact.ThereisnosignificantenhancementandnosurroundingFLAIRsignal.Thereisanabnormaldrainingveinfromtherightcoronaradiatalesion,consistentwithadevelopmentalvenousanomaly.
影像表现:
CT:脑内多发局限性高密度灶,其中右侧放射冠一较大病灶可见钙化,无明显占位效应。
MRI:脑内多发T低信号灶,可见明显磁敏感伪影,无明显强化及周围水肿,右侧放射冠区病灶见一异常引流静脉,符合发育性静脉异常表现。
Differentialdiagnosis
Amyloidangiopathy
Hypertensivebleeds
Hemorrhagicneoplasm
Cavernomas
Diagnosis:Multiplehereditarycavernomas
鉴别诊断:
淀粉样血管病
高血压性脑出血
肿瘤合并出血
海绵状血管瘤
诊断:多发性遗传性海绵状血管瘤
KeypointsCavernousmalformations
海绵状血管瘤
Pathophysiology病理生理学
Cavernousmalformations,alsotermedcavernomas,arebenignvascularhamartomas.海绵状血管畸形,也称海绵状血管瘤,是良性的血管错构瘤。
Theyoftenhemorrhage,creatingacharacteristicimagingappearance.病灶常出血,具有特征性的影像表现。
Themost
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