Placental Site Nodule (PSN): An Uncommon Diagnosis with a Common
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![](https://clinmedjournals.org/articles/ogcr/ogcr-8-199-001.jpg)
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.
![](https://europepmc.org/articles/PMC6283185/bin/medi-97-e13439-g010.jpg)
Management of placental site trophoblastic tumor: Two case reports. - Abstract - Europe PMC
Placental Site and Epithelioid Trophoblastic Tumours: Rare Varieties of Gestational Trophoblastic Neoplasia
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Gestational Trophoblastic Tumors and Related Tumorlike Lesions
![](https://www.pathologyoutlines.com/imgau/placentaexaggLanjewar1.jpg)
Pathology Outlines - Exaggerated placental site
![](https://www.researchgate.net/publication/351865566/figure/fig1/AS:1027533185245184@1621994410393/Representative-histologic-images-Magnification-40x-A-C-E-and-200x-B-D-F-A-B.png)
Representative histologic images. Magnification 40x (A, C, E) and 200x
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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
Gestational Trophoblastic Tumors: A Timely Review of Diagnostic Pathology - Document - Gale OneFile: Health and Medicine
![](https://www.jpatholtm.org/upload/thumbnails/kjpathol-47-67-g001.jpg)
Journal of Pathology and Translational Medicine
![](https://www.pathologyoutlines.com/imgau/placentaplacentalsitenoduleMendoza6.jpg)
Pathology Outlines - Placental site nodule
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PDF] [Squamous cell carcinoma in situ of the cervix and placental site nodule: Case report].
![](https://www.modernpathology.org/cms/attachment/75688212-9017-4b0f-9063-1ade484f1324/gr5.jpg)
Molecular Analyses of Chorionic-Type Intermediate Trophoblastic Lesions: Atypical Placental Site Nodules are Closer to Placental Site Nodules Than Epithelioid Trophoblastic Tumors - Modern Pathology
Gestational Trophoblastic Tumors: A Timely Review of Diagnostic Pathology - Document - Gale OneFile: Health and Medicine
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