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.

PDF) Case report Placental site nodule (PSN): An uncommon diagnosis with a common presentation

Graphic representation of immunohistochemical algorithm used in

Pathology Outlines - Placental site nodule

Gestational Trophoblastic Tumors: A Timely Review of Diagnostic Pathology - Document - Gale OneFile: Health and Medicine

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

On immunohistochemical analysis Placental Site Nodule showing

A tumor-like trophoblastic lesion (placental site nodule)

Placental Site and Epithelioid Trophoblastic Tumours: Rare Varieties of Gestational Trophoblastic Neoplasia

Molecular Analyses of Chorionic-Type Intermediate Trophoblastic Lesions: Atypical Placental Site Nodules are Closer to Placental Site Nodules Than Epithelioid Trophoblastic Tumors - Modern Pathology

PDF) Molecular analyses of chorionic-type intermediate trophoblastic lesions: Atypical placental site nodules are closer to placental site nodules than epithelioid trophoblastic tumors