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首页> 外文期刊>Taiwanese journal of obstetrics and gynecology >Prenatal Diagnosis of Arachnoid Cysts
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Prenatal Diagnosis of Arachnoid Cysts

机译：蛛网膜囊肿的产前诊断

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Arachnoid cysts are a rare central nervous system malformation, representing only 1 % of all intracranial masses in newborns. Primary (congenital) arachnoid cysts are benign accumulation of clear fluid between the dura and the brain substance throughout the cerebrospinal axis in relation to the arachnoid membrane and do not communicate with the subSrachnoid space. Secondary (acquired) arachnoid cysts result from hemorrhage, trauma, and infection and usually communicate with the subarachnoid space. The common locations of arachnoid cysts are the surface of the brain at the level of main brain fissures, such as sylvian, rolandic and interhemi-spheric fissures, sella turcica, the anterior cranial fossa, and the middle cranial fossa. Arachnoid cysts may be associated with ventriculomegaly and dysgenesis of corpus callosum. Prenatal ultrasound and magnetic resonance imaging have led to the increased diagnosis of fetal arachnoid cysts. This article provides a thorough review of fetal arachnoid cysts, including prenatal diagnosis, differential diagnosisand associated chromosomal abnormalities, as well as comprehensive illustrations of perinatal imaging findings of fetal arachnoid cysts. Prenatal diagnosis of intracranial hypoechoic lesions should include a differential diagnosis of arachnoid cysts and prompt genetic investigations.
机译：蛛网膜囊肿是一种罕见的中枢神经系统畸形，仅占新生儿所有颅内肿块的1％。原发性（先天性）蛛网膜囊肿是相对于蛛网膜在整个脑脊髓轴上硬脑膜和脑物质之间的透明液体的良性积聚，并且不与蛛网膜下腔相通。继发性（获得性）蛛网膜囊肿是由出血，外伤和感染引起的，通常与蛛网膜下腔相通。蛛网膜囊肿的常见位置是大脑表面处于主要脑裂的水平，例如，西尔维安，罗兰性和半球间裂，蝶鞍状突节，前颅窝和中颅窝。蛛网膜囊肿可能与脑室肥大和call体发育不全有关。产前超声检查和磁共振成像已导致对胎儿蛛网膜囊肿的诊断增加。本文对胎儿蛛网膜囊肿进行了全面回顾，包括产前诊断，鉴别诊断和相关的染色体异常，以及胎儿蛛网膜囊肿围产期影像学发现的全面说明。颅内低回声病变的产前诊断应包括蛛网膜囊肿的鉴别诊断和及时的遗传学检查。

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