Schistosomiasis involving the breast.

A case of ectopic granulomatous schistosomiasis involving the breast is reported. Although schistosomiasis can involve almost any organ, involvement of the breast is very rare; to the authors' knowledge, there have been only three previously reported cases of breast involvement in the literature. This case was discovered at routine screening mammography. Innumerable, segmentally distributed, fine calcifications and mild architectural distortion were seen at mammography, and a biopsy was performed to exclude malignancy. There appears to be no way to accurately discriminate this disease from breast cancer before biopsy.