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首页> 外文期刊>International medical journal: IMJ >Dandy Walker Malformation, Diagnosis by Prenatal Ultrasonography and Biochemical Investigations
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Dandy Walker Malformation, Diagnosis by Prenatal Ultrasonography and Biochemical Investigations

机译：丹迪·沃克畸形，产前超声检查和生化检查诊断

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Background: Abnormal cerebellar development manifests as a spectrum of disorders classified as malformations of paleo-cerebellum and neocerebellum. Dandy walker complex or malformation, is a disorder of paleocerebellum featured by the enlargement of the fourth ventricle, a partial or complete absence of cerebellar vermis and cyst formation near the base of the skull. The condition may go unnoticed or may occur with symptoms resulting in severe disabilities or even death".Case report: The present case report describes antenatal, ultrasonographic finding in a 22 year old primigravida, suggestive of a single live intrauterine gestation with BPD (42 mm), head circumference (173 mm), abdomen circumference (163 mm) fetal femur length (42 mm) corresponding to gestational age of 24-weeks. The fetus presented with dilated fourth ventricle, underdeveloped posterior wall structures (Cerebellar vermis and splaying cerebellar hemispheres) and hydrocephalus.Treatment: A special tube or shunt to reduce intracranial pressure may be placed inside the skull to control swelling along with of various therapies such as occupational therapy, physical therapy, speech therapy or specialized education.Conclusions: Prenatal diagnosis of Dandy walker is possible with antenatal ultrasound but differentiation from the posterior fossa anomalies likes mega cistern magna and retrocerebellar arachnoid cyst is important. Distinction between Dandy walker variant and mega cistern magna in the fetus is difficult as definitive criteria have not been firmly established. The former condition should be suspected when a thin communication is found between the fourth ventricle and cisterna magna. The latter when the cistern magna has a depth greater than 10 nun". Ultrasound remains useful modality to detect and differentiate such congenital anomalies.
机译：背景：小脑发育异常表现为一系列疾病，分类为古小脑和新小脑畸形。丹迪·沃克复合体或畸形是一种古小脑疾病，其特征是第四脑室增大，在颅底附近部分或完全没有小脑ver骨和囊肿的形成。这种情况可能没有引起注意，或者可能出现导致严重残疾甚至死亡的症状。”病例报告：本病例报告描述了22岁初产妇的产前，超声检查结果，提示单次BPD（42 mm ），头围（173毫米），腹围（163毫米），胎儿股骨长（42毫米），对应于24周胎龄。胎儿呈扩张性第四脑室，后壁结构不发达（小脑ver骨和小脑半球呈张开状态）治疗：可以在颅骨内放置特殊的导管或分流器以降低颅内压，以控制肿胀以及各种疗法，例如职业疗法，物理疗法，言语疗法或专门教育。结论：丹迪·沃克的产前诊断产前超声检查是可能的，但与后颅窝畸形（例如大型水箱大口吻和直肠）区别开来小脑蛛网膜囊肿很重要。由于尚未明确确定明确的标准，很难区分丹迪·沃克变种和胎儿的大型水箱大片。当在第四脑室和大水罐之间发现较弱的通讯时，应怀疑是前一种情况。当水箱的最大深度大于10尼姑时，后者。”超声仍然是检测和区分这种先天性异常的有用方式。

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