Volume 11, Number 12—December 2005
Research
Echinococcosis in Tibetan Populations, Western Sichuan Province, China
Li Tiaoying*, Qiu Jiamin*
, Yang Wen*, Philip S. Craig†, Chen Xingwang*, Xiao Ning*‡, Akira Ito‡, Patrick Giraudoux§, Mamuti Wulamu‡, Yu Wen*, and Peter M. Schantz¶
, Yang Wen*, Philip S. Craig†, Chen Xingwang*, Xiao Ning*‡, Akira Ito‡, Patrick Giraudoux§, Mamuti Wulamu‡, Yu Wen*, and Peter M. Schantz¶
Table 1
Serologic results for screened study participants with a suspected lesion of alveolar (AE) or cystic (CE) echinococcosis at ultrasound examination*
| Ultrasound image | No. cases | Serology with rEm18 |
Serology with EgCF† |
||
|---|---|---|---|---|---|
| No. tested sera | No. positive sera | No. tested sera | No. positive sera | ||
| Typical image of AE‡ | 163 | 102 | 101 | 94 | 93 |
| Image of suspected AE | |||||
| Nodular lesion | 26 | 25 | 16 | 25 | 24 |
| Calcified lesion | 20 | 14 | 8 | 20 | 11 |
| Image of CE | |||||
| CL | 10 | 9 | 0 | 8 | 5 |
| CE1 | 75 | 42 | 4 | 60 | 55 |
| CE2 | 54 | 25 | 3 | 38 | 38 |
| CE3 | 23 | 18 | 3 | 16 | 16 |
| CE4 | 48 | 26 | 2 | 34 | 26 |
| CE5 | 6 | 3 | 0 | 5 | 5 |
| Total | 425 | 264 | 137 | 300 | 273 |
*27.5% of study population refused to provide blood samples for serology. The data only include those study participants with a suspected lesion of AE or CE; other abnormal findings observed at hepatic ultrasound examination, such as hemangioma, biliary cyst, and gallstone, are not presented.
†EgCF, Echinococcus granulosus hydatid cyst fluid.
‡Typical image of AE is a nonhomogeneous, hyperechoic structure with or without a central necrotic cavity.
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