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.
Placental site nodule. Immunohistochemistry stain AE1 + AE3 at 10×
Chest CT scan of the patient. The arrow indicates recurrent
PDF) Case report Placental site nodule (PSN): An uncommon diagnosis with a common presentation
Gestational Trophoblastic Neoplasms
Graphic representation of immunohistochemical algorithm used in
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) Placental Site Trophoblastic Tumor: A Case Report and Review of the Literature
Placental Site Nodule (PSN): An Uncommon Diagnosis with a Common Presentation
PDF) Case report Placental site nodule (PSN): An uncommon diagnosis with a common presentation
Pathology Outlines - Placental site nodule
PDF) Molecular analyses of chorionic-type intermediate trophoblastic lesions: Atypical placental site nodules are closer to placental site nodules than epithelioid trophoblastic tumors
Pathology Outlines - Placental site nodule
Radiographic and hysteroscopic findings of a placental site nodule - ScienceDirect
PDF) Case report Placental site nodule (PSN): An uncommon diagnosis with a common presentation
