上腹部非对称性联体双胞胎的罕见病例

Asymmetrical conjoined twins or heteropagus twins are extremely rare. They ar e characterized by an incomplete component (parasite) that is normally smaller a nd dependent on the host (autosite). In cases of an epigastric heteropagus twin, the insertion occurs in the epigastrium. There are few reports of epigastric he teropagus twinning in the English- language literature. The authors report an e xtremely rare case of epigastric heteropagus twinning in which the parasite pres ented with head, thorax, and a rudimentary heart.

超声诊断不对称性联体双胎合并脐膨出1例

孕妇,27岁,孕1产0,孕25周。身体健康,月经规律,家族中无多胎及其他异常妊娠史,未服用促排卵药,孕期无有毒物或涉嫌接触史,产科检查无异常。系统超声检查：一发育与孕周相符的胎儿,双顶径63 mm,腹围228 mm,股骨长47 mm,脐部可见一包块向外膨出,内为肠管结构,表面见完整膜状高回声包绕,脐带入口位于包块左下方（图1）;该包块上方可见一大小约58 mm×18 mm不规则软组织肿块自腹壁隆起,

利用三维超声区分双胎逆转动脉灌流与上腹部非对称性联体双胎

Twin reversed arterial perfusion sequence and epigastric heteropagus conjoined twins may appear similar antenatally. Three-dimensional ultrasound evaluated the relationship of a completely formed fetus and an adjacent second body consisting of a pelvis with 2 lower extremities, confirming the final diagnosis when twodimensional ultrasound was unsuccessful. Threedimensional ultrasound is useful in diagnosing epigastric heteropagus conjoined twins.

上腹部非对称性胎:3例回顾性病例报道

Conjoined twins are rare, heteropagus conjoined twins are rarer, and epigastri c heteropagus conjoined twins are rarer still. It refers to unequal and asymmetr ical twinning in which the dependant component (parasite) is smaller and attache d to the epigastrium of the dominant component (autosite). We report 3 cases of epigastric heteropagus conjoined twinning. A review of literature is presented a long with a discussion of possible etiopathogenesis.

罕见坐骨联体双胎病例报道并文献复习

目的:通过探讨联体双胎产前超声特点及临床特征,提高对联体双胎的认识。方法:报告1例坐骨联体双胎病例,分析病例的临床特点,并对联体双胎相关文献进行分析。结果:该病例在产前诊断时认为寄生胎,经过引产后病理诊断确认为罕见的四足坐骨联体双胎。结论:联体双胎妊娠是单卵双胎的一种罕见并发症,超声检查在孕早期能够有效发现联体双胎的畸形,为早期诊断提供了重要依据。早期发现、早期诊断和早期干预对于联体双胎的临床管理至关重要,有助于改善孕期管理和预后。

连体婴儿畸形MRI检查一例

患儿女,14天。经剖宫产后发现双胎联体畸形,大便自解,共同有一肛门开口于背部正中。了解盆底情况,联体畸形,了解直肠、肛管情况（A毛毛、B毛毛）,盆底肌肉情况。MRI检查：婴儿连体畸形。两婴儿以盆底相连,分别有一个肾脏,共用一个膀胱,结肠相通。盆底左侧紧邻膀胱侧壁扩张肠管,远端呈锥形终止下盆底中线偏右侧,对应于钡剂灌肠初始显示的肠管,考虑为共用的直肠可能。两婴儿肝脏、脾脏、心脏位置信号未见明显异常,脾脏形态饱满。讨论一次妊娠同时形成2个或2个以上胎儿称多胎妊娠,胎儿数目可为2~8个,以双胎最为常见,且与种族、遗传及地区等因素有关。