Summary
We report male and female siblings with extreme microcephaly and mental retardation, growth retardation, and multiple chromosome mosaicism. Mental retardation associated with chromosome mosaicism does not always carry a low recurrence risk.
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Baker BS, Carpenter ATC, Esposito MS, Sandler L (1976) The genetic control of meiosis. Ann Rev Genet 10:53–154
Bass HN, Fox M, Wulfsberg E, Sparkes R, Crandall BF (1982) Trisomy 18 mosaicism: clues to the diagnosis. Clin Genet 22: 327–330
Chamla Y (1988) C-anaphases in lymphocyte cultures versus premature centromere division syndromes. Hum Genet 78:111–114
German J (1979) Roberts' syndrome. I. Cytological evidence for a disturbance in chromatid pairing. Clin Genet 16:441–447
Hsu LYF, Hirschhorn K, Goldstein A, Barcinski MA (1970) Familial chromosomal mosaicism, genetic aspects. Ann Hum Genet 33: 343–349
Kohn G, Shohat M (1987) Trisomy 18 mosaicism in an adult with normal intelligence. Am J Med Genet 26:929–931
Scheres JMJC, Hustinx TWJ, Madan K, Beltman JD, Lindhout D (1986) A mitotic mutant causing non-disjunction in man. 7th International Congress of Human Genetics, Berlin 1986, part 1, p 163 (abstr)
Tompkins D, Hunter A, Roberts M (1979) Cytogenetic findings in Roberts-SC phocomelia syndrome(s). Am J Med Genet 4:17–26
Vogel F, Motulsky AG (1986) Human genetics—problems and approaches, 2nd edn. Springer, Berlin Heidelberg New York
Zellweger H, Abbo G (1965) Familial mosaicism attributable to a new gene. Lancet I:455–457
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Tolmie, J.L., Boyd, E., Batstone, P. et al. Siblings with chromosome mosaicism, microcephaly, and growth retardation: the phenotypic expression of a human mitotic mutant?. Hum Genet 80, 197–200 (1988). https://doi.org/10.1007/BF00702872
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DOI: https://doi.org/10.1007/BF00702872