Imaging features and pathological basis of hepatic paragonimiasis / 实用放射学杂志

ABSTRACT

Objective To evaluate the MDCT and MRI features of hepatic paragonimiasis and correlate the results with pathological findings. Methods MDCT and MRI findings of 1 9 patients diagnosed pathologically as hepatic paragonimiasis were analyzed retrospectively.1 5 patients underwent MDCT examination only,2 patients underwent MRI only,and 2 patients underwent both MDCT and MRI.Results There were 22 lesions detected on MDCT and MRI.All of the lesions were in the hepatic subcapsular area and 18 lesions directly contacted with the hepatic capsule.The lesions could be classified into the complex and simple lesions according to the enhancement features. 13 lesions were complex and demonstrated as multiple cysts with internal septations.The non-enhanced capsular space and sinuses were mutually communicated.9 lesions were simple.Among the 9 lesions,2 were tubular,3 were tortuous sinus-like,and 4 were oval solid.In all of the 22 lesions,the internal septa and margin showed mild enhancement,and the degree of enhancement on portal phase was higher than that on arterial phase.In addition,the enhanced internal septa and margin of the 2 complex lesions showed hyperintensity on T1 WI.Conclusion The complex lesions and the tubular,tortuous sinus-like simple lesions may be the typical imaging features of hepatic paragonimiasis.The hyper-intense septa and margin on T1 WI can be suggestive of this disease.Recognition of these imaging features is helpful to the correct early diagnosis and avoid unnecessary surgical procedures.