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Revista Colombiana de Obstetricia y Ginecología

Print version ISSN 0034-7434


GARCIA-RIANO, Diego Armando; ARAGON-MENDOZA, Rafael Leonardo  and  MENDEZ-SARMIENTO, Claudia Patricia. Placental teratoma: Case report and review of the literature. Rev Colomb Obstet Ginecol [online]. 2014, vol.65, n.3, pp.262-267. ISSN 0034-7434.

Objective: Placental teratoma is an infrequent benign tumour and there are only a few reports in the world, none of them in Colombia. A case is presented with a review of the literature regarding prenatal and histopathology diagnosis, and prognosis of placental teratoma in pregnancy. Materials and methods: We present the case of a 19 year-old patient in week 32 of gestation who came to the Obstetric Unit at the Hospital Universitario San Rafael, a private Level IV general hospital in Bogotá, Colombia. The patient had a prenatal ultrasound finding of an image of heterogeneous echogenicity in the amniotic cavity. An oval-shaped solid-appearing 5-cm mass was found on the fetal side of the placenta. The histopathology showed findings consistent with placental teratoma. A review of the literature was conducted in the PubMed, Lilacs, SciELO, Ovid, and ScienceDirect databases. Results: Of 10,523 titles found, 23 related to placental teratoma were selected. They were all case reports. The diagnosis of placental teratoma is based on prenatal diagnosis and histopathology; the latter shows mature tissues of the three germinal layers without defined organization. It has a good obstetrical prognosis and does not appear to increase the risk of foetal malformations. Conclusion: Placental teratoma is a tumor of infrequent ocurrence, usually of benign nature.

Keywords : Placenta; teratoma; neoplasia.

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