Abnormalities detected on transvaginal ultrasonography in Tamoxifen-treated postmenopausal breast cancer patients may represent endometrial cystic atrophy. - Mc Gonigle,K.F.; Shaw,S.L.; Vasilev,S.A.; Odom-Maryon,T.; Roy,S.; Simpson,J.F. (Am J Obstet Gynecol, 1998)