title: [Giant placental chorioangioma].
abstract: The large placental chorioangioma is a non-trophoblastic vascular tumor of placenta which size is more than 4 cm. It's a rare tumor, the incidence is between 1/3500 and 1/9000 birth. We analyze, on base of our case and from a literature review, the ultrasonography aspects of this tumor: we bring out also the physiological mechanisms of maternal and fetal complications and finally we detail the therapeutic possibilities. Chorioangioma appears in ultrasound scan like a thoroughly limited hypo-echogenic zone The vascular origin of the tumor can be confirmed by color Doppler. A left-right shunt effect results from arterio-venous communications and causes backwardness growth and fetal death in-utero The fetus is exposed to anemia and microangiopathic thrombopenia The maternal complications are: hydramnios, abruption placenta, premature ruptured membrane. Therapeutic possibilities are reduced: In several fetal anemia, blood transfusion can be done. Some techniques for tumor devascularization are be tried by someone.
authors.affiliation: Service De Gynécologie-Obstétrique Hôpital Mongi Slim, La Marsa, Tunisie.
authors.forename: Atef
authors.initials: A
authors.lastname: Youssef
authors.forename: Nizar
authors.initials: N
authors.lastname: Ben Aissia
authors.forename: Chiheb
authors.initials: C
authors.lastname: Said
authors.forename: Mohamed Faouzi
authors.initials: MF
authors.lastname: Gara
mesh_terms: D000328:Adult; D005260:Female; D005313:Fetal Death / Q000209:etiology; D006391:Hemangioma / Q000150:complications / Q000000981:diagnostic imaging / Q000628:therapy; D006801:Humans; D008297:Male; D010922:Placenta Diseases / Q000000981:diagnostic imaging / Q000628:therapy; D011247:Pregnancy; D011252:Pregnancy Complications, Neoplastic / Q000000981:diagnostic imaging / Q000628:therapy; D011262:Pregnancy Trimester, Second; D018615:Ultrasonography, Doppler, Color; D016216:Ultrasonography, Prenatal