MR Imaging Findings of Tamoxifen-associated Uterine Adenosarcoma: Report of Two Cases
Soo-Yeon CHOI; Deuk-Jae SUNG; Na-Yeon HAN; Beom-Jin PARK; Min-Ju KIM; Ki-Choon SIM; Sung-Bum CHO.
Investigative Magnetic Resonance Imaging
; : 56-61, 2015.
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| WPRIM | ID: wpr-145437
Adenosarcoma of the uterus is a rare biphasic tumor containing benign glandular epithelial and malignant mesenchymal components. The tumor has been reported to be associated with antiestrogen therapy, particularly tamoxifen, but there have been a few case reports with MRI. We present two cases of MRI findings of uterine adenosarcoma after antiestrogen therapy, tamoxifen and toremifene in breast cancer patients. The tumor presents as a large polypoid mass occupying the endometrial cavity, and may protrude into the vagina. On MRI, the tumor typically shows solid components with scattered small cysts and heterogeneous enhancement. These findings are not significantly different from conventional adenosarcoma.
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