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这是一个关于脑囊虫病影像诊断PPT课件,这个ppt包含了History,Diagnosis,epidemiology,classification,DDX,intracranial tuberculosis,IMAging,Metastatic encephaloma等内容。脑囊虫病是由寄生虫(猪绦虫为主)所传染的一种顽固性颅脑内疾病。该病约占囊虫病的80%以上。是由于口服了猪肉绦虫虫卵,发育成囊尾蚴,经消化道穿出肠壁进入肠系膜小静脉,再经体循环而到达脑膜、脑实质以及脑室内。可分为脑实质型、脑室型、脑膜型及混合型。患此病后脑组织及大脑中枢损伤严重,头疼、浑身无力、肢体运动障碍,最严重的是继发癫痫,视物不清,甚至失明等。更多内容,欢迎点击下载脑囊虫病影像诊断PPT课件哦。
脑囊虫病影像诊断PPT课件是由红软PPT免费下载网推荐的一款疾病PPT类型的PowerPoint.
Case Discussion
By Head Group
2013-5-9
History
Female,48Y
Sudden onset;headache, nausea and vomit for 10 years; aggravation for 1 day
CSF culture(-)
2013-1-2
2013-1-15
2013-1-22
Diagnosis
Cerebral Cysticercosis
epidemiology
most commonly in the whole body cysticercosis(80%)
most commonly in cerebral parasitic disease
more prevalent in the country
Pathogen: the cysticercus of armed tapeworm
classification
Parenchymal
Ventricular(the third or fourth)
Meningeal
Mixed
periodization
Subclinical stage
Active stage
Degeneration and death stage
Calcification stage
Mixed stage
Imaging
Active stage
small excentric spotty shadow of the mural cysticercus scolex
low signals on T1WI,high signals onT2WI
capsular liquid : higher than CSF on FLAIR
unremarkable peripheral edema
Degeneration and death stage
scolex disappearance
enlarged capsular cavity
remarkable peripheral edema
“white/black target sign”
“multi-ring sign”
“delanminated sign”
Calcification stage
lower signals on T1WI and T2WI
peripheral edema disappearance
Mixed stage
Enhanced scanning:ringlike enhancement
DDX
Intracranial tuberculosis
Metastatic encephaloma
Brain abscess
intracranial tuberculosis
Children and youth
Classification
tuberculous meningitis
tuberculoma
tuberculous brain abscess
IMAging
Tuberculous meningitis
hydrocephalus
distention of subarachnoid spaces
abnormal meningeal and cistern enhancement
Tuberculoma
space-occupying effect
hydrocephalus
calcification
“target sign”
ringlike or eggshell-like enhancement
Metastatic encephaloma
Primary leision(lung,braest,melanoma)
Multiple
Supratentorial(80%),subtentorial(20%)
Cortex-medullary junctions
Imaging
Isointensity on T1WI
Iso- or mildly hypointensity on T2WI
“small nodule and big edema” sign
necrosis and cystic degeneration
obvious nodular or ringlike enhancement
Brain abscess
Supratentorial(temporal lobe)
Pathogen:MRSA,streptococcus,pneumococcus
Periodization
acute encephalitis stage
suppuration stage
capsule formation stage
acute encephalitis stage
low signal on T1WI,high signal on T2WI
suppuration and capsule formation stage
the wall:
complete,smooth,thin,homogeneous
circular enhancement
“dark belt” sign
immunological examinations
CAg: activity of neurocysticercosis
IgG4:therapy effect
IHA/ELISA:supplementary indicator
treatment
Medical treatment : active stage
albendazole+praziquantel
Surgical operation : degeneration and death stage&granulomatous stage
cysticercosis enucleation
decompressive craniectomy
ventriculoperitoneal shunt
Conclusion
Making a correct diagnosis should be based on epidemiology, patient history, clinical manifestations, neuroimaging and laboratory examination,carring out a comprehensive analysis.
Some non-typical makes misdiagnosed easily, rechecking MRI and laboratory examination can help the differential diagnosis.
2013-2-19
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