phytosterols were present in four samples of normal breast tissue with mean ( +/- s.e . ) campesterol , stigmasterol , and beta-sitosterol ( 2 +/- 0.8 , 15 +/- 9 , 7 +/- 5 microgram/g wet weight ) slightly but not significantly lower than in benign and malignant breast tumors , p greater than 0.1 .
C0006141
breast
C0006142
malignant breast tumors