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Unexpected Findings with the New Chromosome Banding Techniques in a Patient Formerly Diagnosed as Having G-Deletion Syndrome II

Published online by Cambridge University Press:  01 August 2014

E. Orye*
Affiliation:
Laboratory of Cytogenetics, Department of Pediatrics, Rijksuniversiteit Gent, Belgium
M. Craen
Affiliation:
Laboratory of Cytogenetics, Department of Pediatrics, Rijksuniversiteit Gent, Belgium
*
Laboratory of Cytogenetics, Department of Pediatrics, Rijksuniversiteit, De Pintelaan 135, 9000 Ghent, Belgium

Abstract

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A girl is described, who, upon her first admission to our pediatric department in 1965, was supposed to have G-deletion syndrome II on the base of the chromosome findings in routine orcein-stained preparations and her clinical aspect. When, however, in 1972 a Q- and G-banding analysis was performed, the patient seemed to be a t(14q+; 22q—) translocation carrier.

These findings are discussed in relation to the known heterogeneity of the clinical picture of patients previously reported as having a G-deletion syndrome and in whom no banding studies were done.

Finally, the need for more extensive studies with the different techniques is stressed, particularly, in cases of Gq— chromosomes, of which the familial occurrence is suggestive of a hidden reciprocal translocation.

Type
Research Article
Copyright
Copyright © The International Society for Twin Studies 1975

References

REFERENCES

Caspersson, T., Hulten, M., Lindsten, J., Zech, L. 1970 a. Distinction between extra G-like chromosomes by quinacrine mustard fluorescence. Exp. Cell Res., 63: 240.Google Scholar
Caspersson, T., Zech, L., Johansson, C., Modest, E. J. 1970 b. Identification of human chromosomes by DNA-binding fluorescent agents. Chromosoma, 30: 215.Google Scholar
Crandall, B.F., Weber, F., Muller, H.M., Burwell, J.K. 1972. Identification of 21R and 22R chromosomes by quinacrine fluorescence. Clin. Genet., 3: 264.Google Scholar
Day, R.W., Miles, C.P. 1965. Familial Down's syndrome with undetected translocation. J. Pediatr., 67: 399.Google Scholar
Dutrillaux, B., Jonasson, J., Lauren, K., Lejeune, J., Lindsten, J., Petersen, G.B., Saldana-Garcia, P. 1973. An unbalanced 4q/21q translocation identified by the R but not by the G and Q chromosome banding techniques. Ann. Genet., 16: 11.Google Scholar
Grosse, K.P., Bowing, B., Hoffengärtner, F., Reinhardt, G., Sitzmann, C.F. 1971. Ring G-Chromosom. Zwei kasuistische Beiträge und Literaturübersicht. Humangenetik, 12: 142.Google Scholar
Lejeune, J., Berger, R. 1965. Sur deux observations familiales de translocations complexes. Ann. Genet., 8: 21.Google Scholar
Orye, E., Craen, M. 1974. A t(21q21q) ring chromosome. Hum. Hered, 24: 253.Google Scholar
Punnett, H.H., Kistenmacher, M.L., Toro-Sola, M.A., Kohn, G. 1973. Quinacrine fluorescence and Giemsa banding in trisomy 22. Theoret. Appl. Genet., 43, 134.Google Scholar
Ricci, N., Dallapiccola, B., Preto, G. 1970. Familial transmission of a Gq-(Ph1-like) chromosome. Ann. Genet., 13: 263.Google ScholarPubMed
Rowley, J.D. 1973. A new consistent chromosomal abnormality in chronic myelogenous leukemia identified with quinacrine fluorescence and Giemsa staining. Nature (Lond.), 243: 290.Google Scholar
Seabright, M. 1971. A rapid banding technique for human chromosomes. Lancet, 2: 971.Google Scholar
Van den Berghe, H. 1973. The Ph1-chromosome: translocation to chromosome 9. Lancet, 2: 1030.Google Scholar
Warren, R.J., Rimoin, D.L. 1970. The G deletion syndromes. J. Pediatr., 77: 658.CrossRefGoogle ScholarPubMed