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Updated: May 12, 2026

Tubal Cytology of the Fallopian Tube as a Promising Tool for Ovarian Cancer Early Detection
Published on: July 25, 2017
Incidental placental site nodule in a fallopian tube
Jacqueline J Choi1, Rajyasree Emmadi
11University of Illinois at Chicago, Chicago, IL, USA.
Abstract:
A placental site nodule is a benign proliferation of intermediate trophoblasts from a previous gestation that failed to completely involute. It is a rare entity that is often asymptomatic and is usually found incidentally weeks or even years after the pregnancy. The most common location for placental site nodules is in the uterus within the endometrium and occasionally in the cervix, diagnosed by uterine curettings or hysterectomy. However, rare extrauterine cases have been documented and should be considered as a differential diagnosis when encountered in locations such as the fallopian tube. Here, we present a case of a 28-year-old woman with a history of spontaneous abortions who was found to have a placental site nodule of the fallopian tube after postpartum tubal ligation.
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