A case of rectal cancer presenting with schistosoma japonicum eggs in an area not endemic for Schistosomiasis japonica

Abstract

An 81-year-old woman underwent laparoscopically assisted low anterior resection and partial resection of the transverse colon at out department for rectal cancer and transverse colon cancer. Based on histopathological tests, the rectal lesion was diagnosed as tub1-2, type 0-IIa, pSM, int, INFb, ly0, v0, pN0, pPM, pDM0, pRM0, pStage I rectal cancer. In addition, Schistosoma japonicum eggs showing calcification were seen in the submucosa of the rectal lesion. Reports of rectal cancer presenting with Schistosoma japonicum eggs in areas not endemic for schistosomiasis japonica are exceedingly rare. Lesion in the transverse colon was diagnosed as carcinoma in adenoma with 50×30mm in size. The present case is reported along with a review of the relevant literature.