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CHARACTERISTIC MAGNETIC RESONANCE ENHANCEMENT PATTERN IN cerebral schistosomiasis

Chinese Medical Sciences Journal 2006年第4期21卷 223-227页

作者： Han-qiu Liu Xiao-yuan Feng Zhen-wei Yao Hua-ping Sun Department of Radiology Huashan Hospital Fudan University Shanghai 200040

Objective To describe the characteristic magnetic resonance imaging （MRI） appearance of cerebral schistosomiasis. Methods Twenty-five patients whose diagnosis of central nervous system （CNS） schistosomiasis had been pathologically （n = 8 ） and clinically （n = 17） confLrmed were randomly selected. MRI was performed on a Signal 1.5T MRI scanner before and after the intravenous administration of gadopentetate dimeghimine constrast medium. We reviewed the MRI studies obtained at the time of initial presentation, as well as follow-up studies obtained during and after medical treatment Results ImmunoLogicaL tests in L5 patients indicated schistosomiasis haematobium. Contrast-enhanced TL-weighted images in 22 cases showed central linear enhancement surrounded by multiple enhancing punctate nodules, which ap- peared “arborized”. Through operation and pathological examination, 8 cases had the granuloma formation of schistoso- mal eggs extensive surrounded by inflammation and venous congestion. And 17 cases were treated with praziquantel and corticosteroid therapy. And they were followed up for 2 months by taking MRI, which turned out to be complete resolution of the enhancing structure and edema. At follow-up, all the patients＇ initial symptoms also resolved. Conclnsion The specified MRI enhancement pattern of cerebral schistosomiasis is common in most cases of CNS schistosomiasis, so it should be taken account into the diagnosis of cerebral schistosomiasis.

关键词： cerebral schistosomiasis diagnosis magnetic resonance imaging

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