Endometrial carcinoma in one horn of a bicornuate uterus.
BACKGROUND
Tamoxifen therapy is related to endometrial adenocarcinoma. Bicornuate uteri are more common than assumed. There are a few reports of endometrioid carcinoma arising in a bicornuate uterus, but none of these discuss a serous papillary component or an association with tamoxifen therapy.


METHODS
This is a case of a mixed endometrioid and serous papillary endometrial carcinoma arising in one horn of a bicornuate uterus. Multiple benign polyps were also present.


CONCLUSIONS
Adequate tissue sampling of both horns is critical to arriving at a timely and accurate diagnosis of malignancy in patients with a bicornuate uterus.
Moore
Julene R
JR
Department of Pathology, University of Colorado Health Sciences Center, 4200 East 9th Avenue, Denver, CO 80262, USA.
Davidson
Susan A
SA
Singh
Meenakshi
M
D000368:Aged; D018269:Carcinoma, Endometrioid / Q000150:complications / Q000473:pathology; D002291:Carcinoma, Papillary / Q000150:complications / Q000473:pathology; D018284:Cystadenocarcinoma, Serous / Q000150:complications / Q000473:pathology; D016889:Endometrial Neoplasms / Q000150:complications / Q000473:pathology*; D005260:Female; D006801:Humans; D014599:Uterus / Q000002:abnormalities*