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Journal of Medical Genetics logoLink to Journal of Medical Genetics
. 1990 Feb;27(2):109–113. doi: 10.1136/jmg.27.2.109

Three cases of partial trisomy 7q owing to rare structural rearrangements of chromosome 7.

D R Romain 1, H Cairney 1, D Stewart 1, L M Columbano-Green 1, M Garry 1, M I Parslow 1, R Parfitt 1, R H Smythe 1, C J Chapman 1
PMCID: PMC1016931  PMID: 2319577

Abstract

Three cases of partial trisomy 7q are described. One case had duplication of region 7q22.1----q31.2 owing to a de novo direct intra-arm intrachromosomal duplication. The other two cases, first cousins, were trisomic for 7q34----qter, resulting from recombination within the inserted segment of a dir ins(7;17)(q34;q23.1q25.3)mat. All three cases had a number of the already recorded manifestations of partial trisomy 7q, namely strabismus, low set ears, depressed nasal bridge, small nose, hypotonia, and mental retardation.

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Selected References

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  1. Abuelo D. N., Barsel-Bowers G., Richardson A. Insertional translocations: report of two new families and review of the literature. Am J Med Genet. 1988 Oct;31(2):319–329. doi: 10.1002/ajmg.1320310209. [DOI] [PubMed] [Google Scholar]
  2. Couzin D. A., Haites N., Watt J. L., Johnston A. W. Partial trisomy 7 (q32----qter) syndrome in two children. J Med Genet. 1986 Oct;23(5):461–465. doi: 10.1136/jmg.23.5.461. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Forabosco A., Baroncini A., Dalpra L., Chessa L., Giannotti A., Maccagnani F., Dallapiccola B. The phenotype of partial dup(7q) reconsidered: a report of five new cases. Clin Genet. 1988 Jul;34(1):48–59. doi: 10.1111/j.1399-0004.1988.tb02615.x. [DOI] [PubMed] [Google Scholar]
  4. Jalbert P., Jalbert H., Sele B., Mouriquand C., Malka J., Boucharlat J., Pison H. Partial trisomy for the long arms of chromosome no. 5 due to insertion and further 'aneusomie de recombinaison'. J Med Genet. 1975 Dec;12(4):418–423. doi: 10.1136/jmg.12.4.418. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Johnson D. D., Michels V. V., Aas M. A., Dewald G. W. Duplication of 7q31.2----7qter and deficiency of 18qter: report of two patients and literature review. Am J Med Genet. 1986 Nov;25(3):477–488. doi: 10.1002/ajmg.1320250310. [DOI] [PubMed] [Google Scholar]
  6. Martin N. J., Cartwright D. W., Harvey P. J. Duplication 5q(5q22----5q33): from an intrachromosomal insertion. Am J Med Genet. 1985 Jan;20(1):57–62. doi: 10.1002/ajmg.1320200109. [DOI] [PubMed] [Google Scholar]
  7. de Arce M. A., Law E., Martin L., Masterson J. G. A case of inverted insertion assessed by R and G banding. J Med Genet. 1982 Apr;19(2):148–151. doi: 10.1136/jmg.19.2.148. [DOI] [PMC free article] [PubMed] [Google Scholar]

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