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  • Title: Abnormal prenatal sonographic findings in the posterior cranial fossa: a case of Joubert's syndrome.
    Author: Ní Scanaill S, Crowley P, Hogan M, Stuart B.
    Journal: Ultrasound Obstet Gynecol; 1999 Jan; 13(1):71-4. PubMed ID: 10201091.
    Abstract:
    Joubert's syndrome is a well-documented but rare disorder characterized by a variable combination of central nervous system, respiratory, renal and eye anomalies. The most significant and constant neuropathological finding is partial or complete agenesis of the cerebellar vermis. The syndrome was first described by Joubert and colleagues as a familial agenesis of the cerebellar vermis and appears to be inherited as an autosomal recessive trait. A case of Joubert's syndrome is described in which second-trimester ultrasonography demonstrated abnormal findings in the fetal posterior fossa with associated renal abnormalities. However, postnatal sonography of the posterior fossa could not confirm the prenatal findings, and the diagnosis of Joubert's syndrome was only later established by computed tomography of the neonatal brain in the knowledge of the characteristic clinical picture.
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