INFECTIONS

Jan 12, 2019 by in ULTRASONOGRAPHY Comments Off on INFECTIONS

9.1 CYTOMEGALIC INCLUSION DISEASE Print Section Listen EPIDEMIOLOGY/GENETICS Definition Cytomegalovirus (CMV) is a large, enveloped DNA herpesvirus. Adult infection is frequently asymptomatic, but fetal infection may cause severe damage to…

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PRENATAL DEVELOPMENT OF THE BRAIN

Jan 12, 2019 by in ULTRASONOGRAPHY Comments Off on PRENATAL DEVELOPMENT OF THE BRAIN

KEY POINTS Print Section Listen KEY POINTS The embryonic period (the first 8 postfertilizational weeks) is subdivided into 23 morphological stages, which, because they are based on internal as well…

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TWINS

Jan 12, 2019 by in ULTRASONOGRAPHY Comments Off on TWINS

11.1 MONOCHORIONIC/MONOAMNIOTIC TWINNING Print Section Listen EPIDEMIOLOGY/GENETICS Definition Monoamniotic (MA) twins share a common amniotic sac. Triplets and higher-order multifetal gestations also may contain a monochorionic (MC) twin pair. The…

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SONOGRAPHIC FEATURES OF LESS-COMMON FETAL SYNDROMES/ASSOCIATIONS

Jan 12, 2019 by in ULTRASONOGRAPHY Comments Off on SONOGRAPHIC FEATURES OF LESS-COMMON FETAL SYNDROMES/ASSOCIATIONS

Print Section Listen Aarskog syndrome (X-linked recessive) Hypertelorism Short nose Clinodactyly Brachydactyly Aase syndrome (autosomal dominant) Radial hypoplasia Cleft palate Ventricular septal defect Urogenital anomalies Acrocallosal syndrome (autosomal recessive) Agenesis…

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VENTRICULOMEGALY

Jan 8, 2019 by in ULTRASONOGRAPHY Comments Off on VENTRICULOMEGALY

KEY POINTS Print Section Listen KEY POINTS Ventriculomegaly is not a diagnosis. It is a sign. The search for all underlying causes should be immediately undertaken. Ventriculomegaly is frequently associated…

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Neoplasms of the Spine

Nov 11, 2018 by in NEUROLOGICAL IMAGING Comments Off on Neoplasms of the Spine

Neoplasms of the Spine A. James Barkovich Tumors of the spinal cord in children are slowly growing masses with clinical manifestations that are often subtle and slowly progressive. The widespread…

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Congenital Anomalies of the Spine

Nov 11, 2018 by in NEUROLOGICAL IMAGING Comments Off on Congenital Anomalies of the Spine

Congenital Anomalies of the Spine Erin Simon Schwartz A. James Barkovich Normal and Abnormal Embryogenesis of the Spine: An Overview An understanding of the normal embryonic developmental sequence of the…

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