History:Ayoungmanpresentswithaheadache.

病史：年轻男性，头痛。

MRimageisshownbelow.MR图像如下所示。

T2-weightedandfat-suppressedcontrast-enhancedT1-weightedimagesareshownbelow.

T2WI及T1WI压脂增强图像如下所示。

Findings

Acysticstructureisseeninthespleniumofthecorpuscallosumwithasmallinternalnoduleandsmoothrimenhancement.Thereisanadditionalsmallcystwithinternalsignalconsistentwithfluidintheanteriorhornoftheleftlateralventricle.

影像表现：胼胝体压部见一囊性结构，内见一小壁结节，增强扫描壁环形强化，表面光滑。左侧侧脑室前角另见一小液性囊性灶。

Differentialdiagnosis

Neurocysticercosis

Abscesses

Metastaticdisease

鉴别诊断：

脑囊虫病

脑脓肿

转移瘤

Diagnosis:Neurocysticercosis(NCC),colloidalvesicularstage

诊断：脑囊虫病（NCC），胶样囊泡期

Neurocysticercosis(NCC)

NeurocysticercosisisaparasiticinfectionofthecentralnervoussystemiscausedbytheporktapewormTaeniasolium.

HighestincidenceisinLatinAmerica.

Dependingonlocationoftheinfection,patientsmaypresentwithheadache,seizures,hydrocephalus,etc.

SymptomsarecausedbytheimmunereactiontoNCC,notthelesionsthemselves.

Typicallyoccurinsubarachnoidspaces,ventricles/cisterns,andatthegray/whitematterinterface.

Variable-sizecystsmaybeseenwithorwithoutrimenhancementandasmallcentralnodule(scolex).

Fourstagesofinfection:

Vesicular:Viablelarva;smooth-walledcystwithcentralscolex

Colloidalvesicular:Degeneratinglarva;rim-enhancingcystandmarkedsurroundingedema

Granularnodular:Healingstage;mildedemaandrimenhancement

Nodularcalcified:Healedstage;small,involutedcystwithorwithoutcalcifications

Metastaticdiseaseisfarmore







































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