Egyptian Journal of Medical Human Genetics

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Holoprosencephaly:a report of 2 cases with different presentations

RM Shawky, DI Sadik


Holoprosencephaly is a common developmental defect of the forebrain and
midface in humans. Clinical expression is variable, extending in unbroken sequence from a small brain with a single cerebral ventricle and cyclopia to clinically unaffected carriers in familial holoprosencephaly. Here, we describe two unrelated affected cases, with alobar, and semilobar holoprosencephaly with different presentations and clarified the associated
phenotypic changes in form of microcephaly, hypotelorism, flat nose, a single nostril, a midline cleft lip and palate in the first case and solitary median maxillary central incisor, associated with prominent midline palatal ridge in the second case

Keywords: Holoprosencephaly, ocular hypotelorism, central incisor, microcephaly, cleft lip

Egyptian Journal of Medical Human Genetics Vol. 9 (2) 2008: pp. 249-256

AJOL African Journals Online