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  • Title: Single central maxillary incisor and holoprosencephaly.
    Author: Hattori H, Okuno T, Momoi T, Kataoka K, Mikawa H, Shiota K.
    Journal: Am J Med Genet; 1987 Oct; 28(2):483-7. PubMed ID: 3425622.
    Abstract:
    A holoprosencephalic child was born to a mother with a single central maxillary incisor. The infant had a median cleft lip, a flat nose with a single nostril, hypotelorism, and normal chromosomes. The head was brachycephalic and small, and computed tomography (CT) of the brain showed semilobar holoprosencephaly. The mother had mild hypotelorism but no anosmia, and her brain CT was normal. She was of normal intelligence and stature. Other relatives did not have single central maxillary incisors, hypotelorism, or oral clefts. Whether the mother's anomaly was a new mutation or had been inherited is unknown. We show the significance of a single central maxillary incisor as an indicator or potential holoprosencephaly in the next generation, even if other relatives are apparently normal.
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