lemon sign

scalloping of the frontal bones giving the skull a lemon-shaped configuration in axial section in sonography of the fetal skull during the second trimester of pregnancy; a sign of the Arnold-Chiari deformity.

Medical dictionary. 2011.

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  • Singuläre Umbilicalarterie — Der Ausdruck sonografischer Softmarker wird in der Pränataldiagnostik gebraucht und bezeichnet solche Besonderheiten, deren vorgeburtlicher (pränataler) Nachweis durch Ultraschalluntersuchungen gestellt wird und die mit einer statistisch gesehen… …   Deutsch Wikipedia

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  • Arnold-Chiari-Fehlbildung — Klassifikation nach ICD 10 Q07.0 Arnold Chiari Syndrom …   Deutsch Wikipedia

  • Arnold-Chiari-Malformation — Klassifikation nach ICD 10 Q07.0 Arnold Chiari Syndrom …   Deutsch Wikipedia

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