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HOME > J Pathol Transl Med > Volume 26(1); 1992 > Article
Original Article Placental Site Nodules & Plaques: A clinicopathologic analysis of 14 cases.
Kyu Rae Kim, Sun Won Hong, Kyung Sub Cha, In Pyong Kwak, Tae Ki Yoon
Journal of Pathology and Translational Medicine 1992;26(1):53-61
DOI: https://doi.org/
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1Department of Pathology, Cha Women's Hosptial, Seoul, Korea.
2Department of Obstetrics and Gynecology, Cha Women's Hosptial, Seoul, Korea.
3Department of Pathology, Yonsei University College of Medicine, Seoul, Korea.

Placental site nodules and plaques have been recently described to designated single or multiple, well-circumscribed, rounded lesions at the placental site, composed of viable or degenerating intermediate trophoblastic cells and extensive hyalinization between the cells. We described clinicopathologic findings of 14 cases of placental site nodules and plaques. The age of 14 patients ranged from 25 to 39(average 33) years and all of them had been pregnant in the past. Ten of them presented with vaginal spotting, which was preceded by recent pregnancy in only 3 cases. Three patients presented with secondary infertility and one with secondary infertility and vaginal spotting. Urine pregnancy tests were negative in all 14 cases at the time of presentation. Ultrasonographic examination disclosed abnormalities in only 3 cases and the remaining cases were normal. Hysterosalpingography was performed in 3 patients who presented with 2 degrees infertility and revealed moderate to severe intrauterine adhesions. Microscopically, chronic endometritis of varying degrees evidenced by plasma cells and eosinophiles were present in all cases and these were more prominent in the vicinity of the lesions. It is presumed that the placental site nodules and plaques are not sloughed at the time of menstruation and it may cause chronic endometritis or intrauterine adhesions at any time after previous delivery.

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