1/25. Focal aneurysmal dilatation of subchorionic vessels simulating chorioangioma.Subchorionic vascular aneurysms of the placenta are rare lesions and may present confusion with chorioangioma or focal mesenchymal dysplasia on sonography. To our knowledge, the findings of placental aneurysms have not been reported in the ultrasound literature. We present a case with detailed sonographic evaluation, including spectral and color Doppler and pathological analysis, that was mistaken for chorioangioma prenatally. knowledge of this benign entity may allow the sonologist to recommend conservative management in similar cases.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
2/25. Partial molar transformation of the placenta of presumably monozygotic twins.A pregnancy with one normal female fetus and a placenta that was divided into halves, one normal the other molar, is described. Genetic analysis shows the molar component to be hyperdiploid/tetraploid but having an identical dna composition as the normal twin. Because there was no trophoblastic proliferation and the hyperdiploid cells were confined to the villous stroma, and because the molar component was still being perfused by diploid vessels from the normal twin, we believe the mole is derived from polyploidization of the mesenchymal epiblast in a monozygotic twin pregnancy.- - - - - - - - - - ranking = 0.25keywords = vessel (Clic here for more details about this article) |
3/25. Hepatic hemangioendothelioma: prenatal sonographic findings and evolution of the lesion.We describe a case of hepatic hemangioendothelioma that was first suspected based on prenatal sonographic findings at 19 weeks' menstrual age. At 16 weeks, the patient presented with a markedly elevated maternal serum alpha-fetoprotein level. Serial sonographic examinations revealed that the fetus had cardiomegaly, hepatomegaly with a hepatic mass and dilated intrahepatic vessels, a single umbilical artery, and a placental chorioangioma. Arteriovenous shunting within the hepatic mass was seen using color Doppler and pulsed Doppler sonography. An enlarged artery arising from the abdominal aorta supplying the mass was demonstrated. Postnatal physical examination and radiologic studies supported the diagnosis of hepatic hemangioendothelioma. The evolution in the sonographic appearance of this hepatic lesion in utero over a 17-week period is described.- - - - - - - - - - ranking = 0.25keywords = vessel (Clic here for more details about this article) |
4/25. Mesenchymal dysplasia of the placenta.A severe case of placental mesenchymal dysplasia occurred in association with intrauterine fetal death (IUFD). The gravida-1, para-1 mother was a 26-year-old Japanese. The first pregnancy was unremarkable and a healthy female infant was delivered. The present pregnancy had been uneventful until 34 weeks of gestation when IUFD was detected. The 1516-g (mean /- SD, 2050 /- 387 g) stillborn infant had no external abnormalities and the karyotype was 46,XX. The placenta was markedly enlarged (1050 g; mean /- SD, 452 /- 202 g), and approximately 80% was occupied by extraordinary enlarged villous structures with a myxoid appearance. Histologically, the dysplastic villi had myxoid stroma and a decreased number of, occasionally obliterated, fetal vessels. There was no abnormal trophoblastic proliferation. Large-sized fetal vessels in the chorionic plate frequently contained organized thrombi. This is the first case of placental mesenchymal dysplasia, which possibly lead to the IUFD.- - - - - - - - - - ranking = 0.5keywords = vessel (Clic here for more details about this article) |
5/25. Ruptured internal carotid aneurysm resulting from neurofibromatosis: treatment with intraluminal stent graft.PURPOSE: This report shows a method of treatment for life-threatening hemorrhage due to rupture of an aneurysm in the cervical internal carotid artery caused by neurofibromatosis. methods: Ten days after delivery of healthy twins, a 28-year-old woman with known neurofibromatosis had sudden massive swelling in the left neck. After initial tracheostomy, angiography confirmed rupture of the mid cervical internal carotid artery as well as contribution to the resultant pseudoaneurysm from external carotid branches. Treatment began with coil embolization of the external carotid branches. The internal carotid lesion, a defect approximately 1 cm in length, was then closed through use of two stent grafts, each made from Palmaz stents and 3-mm polytetrafluorethylene grafts predilated to 6 mm. The neck hematoma was then evacuated surgically. RESULTS: Completion angiography and computed tomographic scanning confirmed control of the hemorrhage. The patient survived neurologically intact with the exception of cranial nerve deficits caused by the hemorrhage. The tracheostomy tube was removed 3 weeks postoperatively. Follow-up computed tomographic scanning showed a gradual decrease in the size of the cervical soft tissue and no recurrent aneurysm. CONCLUSION: Neurofibromatosis is a rare cause of aneurysmal degeneration of blood vessels. Repair of a ruptured cervical internal carotid artery aneurysm, though feasible, is difficult with stent grafts; however, this is a better option than surgical intervention in inaccessible vessels.- - - - - - - - - - ranking = 0.5keywords = vessel (Clic here for more details about this article) |
6/25. Early pregnancy uninterrupted by laparoscopic bipolar coagulation of uterine vessels.Laparoscopic bipolar coagulation of uterine vessels (LBCUV) is reported to treat clinically symptomatic myomas that caused severe menorrhagia, but the viability of pregnancy after operation is unknown. A woman with clinically diagnosed uterine myomas, possibly with adenomyosis, had unexpected early pregnancy diagnosed at the time of LBCUV. The procedure resulted in improvement of menorrhagia to normal menstruation and reductions in the volume of both uterus and myomas. The intrauterine pregnancy was terminated at the woman's request. pregnancy may be possible after LBCUV, although none has been reported.- - - - - - - - - - ranking = 1.25keywords = vessel (Clic here for more details about this article) |
7/25. Alcoholization: the choice of intrauterine treatment for chorioangioma.Chorioangioma is a vascular tumor of the placenta. Most are small and asymptomatic, whereas the large tumors are clinically significant and often associated with polyhydramnios and fetal heart failure. To prevent fetal loss from these complications, many interventions have been proposed, including intrauterine transfusion in anemic cases and fetoscopic surgery to ablate the feeding vessels. The case presented herein had large chorioangiomas, 8 and 4cm in diameter, associated with polyhydramnios and early signs of hydrops fetalis, diagnosed at 27 weeks gestation. After extensive counseling, we performed alcohol ablation of the feeding vessel of the larger tumor. Signs of fetal heart failure and hydrops fetalis disappeared dramatically. The pregnancy was extended for 2 weeks, followed by premature rupture of the membranes and spontaneous labor at 32 weeks gestation and a surviving female baby, weighing 1360g, was delivered uneventfully. This preliminary experience suggests that alcoholization may be one of the best choices for this condition due to its high efficacy, simplicity, safety and very low cost. To our knowledge, this is the first report using alcoholization for the treatment of hydrops fetalis secondary to chorioangioma.- - - - - - - - - - ranking = 0.5keywords = vessel (Clic here for more details about this article) |
8/25. Ultrasound-guided interstitial laser therapy for the treatment of placental chorioangioma.BACKGROUND: Placental chorioangioma is a relatively rare malformation with potential to cause fetal hydrops and even death. We describe ultrasound-guided interstitial laser as a modality for treating chorioangiomas of the placenta. CASE: The patient presented at midgestation with placental chorioangioma resulting in fetal cardiomegaly. Interstitial laser was performed under local anesthesia on two occasions and resulted in arrest of flow through the tumor feeder vessel. CONCLUSION: Interstitial laser therapy in a patient with placental chorioangioma resulted in a successful outcome.- - - - - - - - - - ranking = 0.25keywords = vessel (Clic here for more details about this article) |
9/25. Prenatal laser treatment of a placental chorioangioma.Large placental chorioangiomas are rare complications in pregnancy. We present a case of a placental chorioangioma, complicated by polyhydramnios, in which obliteration of its blood supply using diode laser coagulation at 25 weeks of gestation was followed by an uneventful pregnancy and delivery of a healthy baby with a normal follow-up at the age of 9 months. laser coagulation of the feeding vessels seems to be an effective treatment for chorioangiomas when the blood supply is superficial and the feeding vessels are small in diameter.- - - - - - - - - - ranking = 0.5keywords = vessel (Clic here for more details about this article) |
10/25. angiolymphoid hyperplasia with eosinophilia associated with pregnancy: a case report and review of the literature.A case of angiolymphoid hyperplasia with eosinophilia (ALH) is reported in a 33-year-old woman who developed an auricular nodule during the second trimester of her pregnancy. angiolymphoid hyperplasia with eosinophilia usually occurs on the head and neck of young adults and is more common in women than in men. Characteristic histologic features of ALH present in this case included proliferation of thick-walled blood vessels lined by prominent endothelial cells, infiltration of the interstitium by chronic inflammatory cells (mainly eosinophils), and presence of lymphoid follicles with germinal centers. The auricular tumor was completely excised. Thirteen months after excision, the patient remains tumor free. Although there are not many case reports on ALH during pregnancy or involving use of oral contraceptive pills, sex hormones may play a role in the pathogenesis of ALH. This hypothesis, in the context of cases previously described in the literature, and the differential diagnosis of ALH are discussed.- - - - - - - - - - ranking = 0.25keywords = vessel (Clic here for more details about this article) |
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