Incidental Placental Site Nodule in a Fallopian Tube

Jacqueline J. Choi, Rajyasree Emmadi
In: International Journal of Surgical Pathology · 2013 · vol. 22(1) , pp. 90–92 · doi:10.1177/1066896913483900 · PMID:23564702 · W2093209041
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This case report describes the rare incidental finding of a placental site nodule, a benign trophoblast proliferation, within the fallopian tube of a woman postpartum.

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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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