Placental Site Nodule (PSN): An Uncommon Diagnosis with a Common Presentation

Placental site nodule is an uncommon, benign, generally asymptomatic lesion of trophoblastic origin, which may often be detected several months to years after the tenancy from which it resulted. PSN usually presents as menorrhagia, intermenstrual bleeding or an abnormal pap smear. PSN is benign, but it is important to distinguish it from the other benign and malignant lesions like decidua, placental polyp, exaggerated placental site and placental site trophoblastic tumor and squamous cell carcinoma. Follow ups of typical PSNs do not show recurrence or malignant potential.

Atypical Placental Site Nodules within the Diverticulum of the Uterine Incision, a Rare Gestational Trophoblastic Disease Misdiagnosed as Intrauterine Residue: A Case Report

PDF) Placental site trophoblastic tumor unprecedented by conception: a very rare presentation

Pathology Outlines - Placental site nodule

Atypical Placental Site Nodules within the Diverticulum of the Uterine Incision, a Rare Gestational Trophoblastic Disease Misdiagnosed as Intrauterine Residue: A Case Report

The placenta, products of conception, and gestational trophoblastic disease (Chapter 40) - Silverberg's Principles and Practice of Surgical Pathology and Cytopathology

Gestational Trophoblastic Tumors and Related Tumorlike Lesions

Pathology Outlines - Placental site nodule

Gestational Trophoblastic Tumors and Related Tumorlike Lesions

Placental site nodule. Immunohistochemistry stain AE1 + AE3 at 10×

Transformation of a post-cesarean section placental site nodule into a coexisting epithelioid trophoblastic tumor and placental site trophoblastic tumor: a case report, Diagnostic Pathology