Abstract
A 1-year-old girl with partial 5q trisomy and partial 7q monosomy had ocular abnormalities that included bilateral blepharoptosis and Leber's congenital amaurosis. A single bright-flash electroretinogram (dark-adapted, white stimulation) disclosed subnormal bilateral responses. Her maculas showed a reddish spot surrounded by a broad, greyish retinal zone. Cytogenetic studies disclosed deletion of q22 to the terminal of chromosome 7 and partial trisomy of q31 to the terminal of chromosome 5. Because all reported patients with 5q trisomy have not had Leber's congenital amaurosis, the ocular abnormalities noted in our patient may be explained by the 7q monosomy.
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- Ayraud N., Rovinski J., Lambert J. C., Galiana A. Délétion interstitielle du bras long d'un chromosome 7 chez une enfant lepréchaune. Ann Genet. 1976 Dec;19(4):265–268. [PubMed] [Google Scholar]
- Bartsch-Sandhoff M., Liersch R. Partial duplication 5q syndrome: phenotypic similarity in two sisters with identical karyotype (partial duplication 5q33 leads to 5qter and partial deficiency 8p23 leads to pter). Ann Genet. 1977 Dec;20(4):281–284. [PubMed] [Google Scholar]
- Bass H. N., Crandall B. F., Marcy S. M. Two different chromosome abnormalities resulting from a translocation carrier father. J Pediatr. 1973 Dec;83(6):1034–1038. doi: 10.1016/s0022-3476(73)80545-1. [DOI] [PubMed] [Google Scholar]
- Bernstein R., Dawson B., Morcom G., Wagner J., Jenkins T. Two unrelated children with distal long arm deletion of chromosome 7: clinical features, cytogenetic and gene marker studies. Clin Genet. 1980;17(3):228–237. doi: 10.1111/j.1399-0004.1980.tb00138.x. [DOI] [PubMed] [Google Scholar]
- Bernstein R., Philip P., Ueshima Y. Fourth International Workshop on Chromosomes in Leukemia 1982: Abnormalities of chromosome 7 resulting in monosomy 7 or in deletion of the long arm (7q-): review of translocations, breakpoints, and associated abnormalities. Cancer Genet Cytogenet. 1984 Mar;11(3):300–303. doi: 10.1016/s0165-4608(84)80011-4. [DOI] [PubMed] [Google Scholar]
- Biederman B., Bowen P. Balanced t(8;9)(q12;q33)pat carrier with phenotypic abnormalities attributable to a de novo terminal deletion of the long arm of chromosome 7. Hum Genet. 1978 Feb 23;41(1):101–107. doi: 10.1007/BF00278876. [DOI] [PubMed] [Google Scholar]
- Curry C. J., Loughman W. D., Francke U., Hall B. D., Golbus M. S., Derstine J., Epstein C. J. Partial trisomy for the distal long arm of chromosome 5 (region q34 leads to qter). A new clinically recognizable syndrome. Clin Genet. 1979 May;15(5):454–461. [PubMed] [Google Scholar]
- Ferguson-Smith M. A., Newman B. F., Ellis P. M., Thomson D. M., Riley I. D. Assignment by deletion of human red cell acid phosphatase gene locus to the short arm of chromosome 2. Nat New Biol. 1973 Jun 27;243(130):271–274. doi: 10.1038/newbio243271a0. [DOI] [PubMed] [Google Scholar]
- Franceschini P., Silengo M. C., Davi G. F., Santoro M. A., Prandi G., Fabris C. Interstitial deletion of the long arm of chromosome 7 46,XX,del(7)(pter leads to q2200::q3200 leads to qter). Hum Genet. 1978 Nov 16;44(3):345–348. doi: 10.1007/BF00394300. [DOI] [PubMed] [Google Scholar]
- Francke U. Hageman (factor XII) locus on 7q?: report of a second case with del(7)q35 and normal factor XII level. Hum Genet. 1978 Dec 29;45(3):363–367. doi: 10.1007/BF00278736. [DOI] [PubMed] [Google Scholar]
- Friedrich U., Osterballe O., Stenbjerg S., Jørgensen J. A girl with karyotype 46,XX,del(7)(pter leads to q32:). Hum Genet. 1979 Oct 1;51(2):231–235. doi: 10.1007/BF00287183. [DOI] [PubMed] [Google Scholar]
- Gibson J., Ellis P. M., Forsyth J. S. Interstitial deletion of chromosome 7: a case report and review of the literature. Clin Genet. 1982 Nov;22(5):256–265. doi: 10.1111/j.1399-0004.1982.tb01442.x. [DOI] [PubMed] [Google Scholar]
- Harris E. L., Wappner R. S., Palmer C. G., Hall B., Dinno N., Seashore M. R., Breg W. R. 7q deletion syndrome (7q32 leads to 7qter). Clin Genet. 1977 Oct;12(4):233–238. [PubMed] [Google Scholar]
- Higginson G., Weaver D. D., Magenis R. E., Prescott G. H., Haag C., Hepburn D. J. Interstitial deletion of the long arm of chromosome no. 7 (7q-) in an infant with multiple anomalies. Clin Genet. 1976 Nov;10(5):307–312. doi: 10.1111/j.1399-0004.1976.tb00053.x. [DOI] [PubMed] [Google Scholar]
- 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]
- Jones L. A., Jordan D. K., Taysi K., Strauss A. W., Toth J. K. Partial duplication of the long arm of chromosome 5: a case due to balanced paternal translocation and review of the literature. Hum Genet. 1979 Sep 2;51(1):37–42. doi: 10.1007/BF00278289. [DOI] [PubMed] [Google Scholar]
- Kawashima H., Taniguchi N. Normal Hageman factor level in 7q deletion syndrome. Clin Genet. 1981 Mar;19(3):207–208. doi: 10.1111/j.1399-0004.1981.tb00698.x. [DOI] [PubMed] [Google Scholar]
- Klep-de Pater J. M., Bijlsma J. B., Bleeker-Wagemakers E. M., de France H. F., de Vries-Ekkers C. M. Two cases with different deletions of the long arm of chromosome 7. J Med Genet. 1979 Apr;16(2):151–154. doi: 10.1136/jmg.16.2.151. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Kousseff B. G., Hsu L. Y., Paciuc S., Hirschhorn K. A partial long arm deletion of chromosome 7:46,XY,del(7)(q32). J Med Genet. 1977 Apr;14(2):144–147. doi: 10.1136/jmg.14.2.144. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Osztovics M., Kiss P. Familial translocation, t(2;5) (p23; g31). Clin Genet. 1975 Aug;8(2):112–116. [PubMed] [Google Scholar]
- Osztovics M., Kiss P. Trisomy 5q15-q31 due to maternal insertion, ins (6; 5) (q21; q15q31). Acta Paediatr Acad Sci Hung. 1982;23(2):231–237. [PubMed] [Google Scholar]
- Reynolds J. D., Golden W. L., Zhang Y., Hiles D. A. Ocular abnormalities in terminal deletion of the long arm of chromosome seven. J Pediatr Ophthalmol Strabismus. 1984 Jan-Feb;21(1):28–32. doi: 10.3928/0191-3913-19840101-08. [DOI] [PubMed] [Google Scholar]
- Rodewald A., Zankl M., Gley E. O., Zang K. D. Partial trisomy 5q: three different phenotypes depending on different duplication segments. Hum Genet. 1980;55(2):191–198. doi: 10.1007/BF00291766. [DOI] [PubMed] [Google Scholar]
- Seabright M., Lewis G. M. Interstitial deletion of chromosome 7 detected in three unrelated patients. Hum Genet. 1978 Jun 9;42(2):223–226. doi: 10.1007/BF00283642. [DOI] [PubMed] [Google Scholar]
- Serup L. Interstitial deletion of the long arm of chromosome 7. Hum Genet. 1980;54(1):19–23. doi: 10.1007/BF00279044. [DOI] [PubMed] [Google Scholar]
- Shokeir M. H., Ying K. L., Pabello P. Deletion of the long arm of chromosome no. 7: tentative assignment of the Kidd (Jk) locus. Clin Genet. 1973;4(4):360–368. doi: 10.1111/j.1399-0004.1973.tb01932.x. [DOI] [PubMed] [Google Scholar]
- Stallard R., Juberg R. C. Partial monosomy 7q syndrome due to distal interstitial deletion. Hum Genet. 1981;57(2):210–213. doi: 10.1007/BF00282026. [DOI] [PubMed] [Google Scholar]
- Turleau C., de Grouchy J., Perignon F., Lenoir G. Monosomie 7qter. Ann Genet. 1979;22(4):242–244. [PubMed] [Google Scholar]
- Young R. S., Weaver D. D., Kukolich M. K., Heerema N. A., Palmer C. G., Kawira E. L., Bender H. A. Terminal and interstitial deletions of the long arm of chromosome 7: a review with five new cases. Am J Med Genet. 1984 Feb;17(2):437–450. doi: 10.1002/ajmg.1320170207. [DOI] [PubMed] [Google Scholar]
- Yunis J. J. High resolution of human chromosomes. Science. 1976 Mar 26;191(4233):1268–1270. doi: 10.1126/science.1257746. [DOI] [PubMed] [Google Scholar]
- Zabel B., Baumann W., Gehler J., Conrad G. Partial trisomy for short and long arm of chromosome no. 5: Two cases of two possible syndromes. J Med Genet. 1978 Apr;15(2):143–147. doi: 10.1136/jmg.15.2.143. [DOI] [PMC free article] [PubMed] [Google Scholar]
- de Grouchy J., Turleau C. Tentative localization of a Hageman (Factor XII) locus on 7q, probably the 7q35 band. Humangenetik. 1974;24(3):197–200. doi: 10.1007/BF00283584. [DOI] [PubMed] [Google Scholar]