Youssef Atef, Ben Aissia Nizar, Said Chiheb, Gara Mohamed Faouzi
Service De Gynécologie-Obstétrique Hôpital Mongi Slim, La Marsa, Tunisie.
Tunis Med. 2006 Jul;84(7):450-3.
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.
巨大胎盘绒毛膜血管瘤是一种胎盘非滋养层血管肿瘤，直径大于4厘米。它是一种罕见肿瘤，发病率在每3500至9000例出生中有1例。我们基于自身病例并通过文献回顾，分析了该肿瘤的超声表现：我们还阐述了母婴并发症的生理机制，最后详述了治疗的可能性。绒毛膜血管瘤在超声扫描中表现为一个边界清晰的低回声区。肿瘤的血管起源可通过彩色多普勒证实。动静脉交通导致左右分流效应，引起逆向生长和宫内胎儿死亡。胎儿易患贫血和微血管病性血小板减少症。母亲的并发症有：羊水过多、胎盘早剥、胎膜早破。治疗选择有限：在一些胎儿贫血病例中，可以进行输血。有人尝试了一些肿瘤去血管化技术。
