Jumping translocation of chromosome 14 in a skin squamous cell carcinoma from a xeroderma pigmentosum patient.
The cytogenetic study of a case of cutaneous squamous cell carcinoma developed in a child affected by xeroderma pigmentosum is described. In this paratetraploid tumor, virtually all mitoses had the following rearrangements: i(1q), i(1p), t(3q14q), del(9p), and der(19)t(8;19). In addition, there were several deletions of 1p and 1q. The del(9p) likely occurred as the first rearrangement. The distal segment of the short arm of chromosome #9 and the long arm of #19 and #22 were the most underrepresented and chromosome #6 the most overrepresented chromosome or chromosome segment. The most striking anomaly detected was a jumping translocation of chromosome #14, involved with chromosomes #1, #3, #5, #7, #9, #14, and #22. The breakage of chromosome #14 always occurred on the short arm.
Aledo
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R
Institut Curie, Section de Biologie, Paris, France.
Aurias
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A
Chrétien
B
B
Dutrillaux
B
B
D002294:Carcinoma, Squamous Cell / Q000209:etiology / Q000235:genetics*; D002648:Child; D002883:Chromosomes, Human, Pair 14; D005260:Female; D005819:Genetic Markers; D006801:Humans; D007621:Karyotyping; D012878:Skin Neoplasms / Q000209:etiology / Q000235:genetics*; D014178:Translocation, Genetic; D014983:Xeroderma Pigmentosum / Q000150:complications / Q000235:genetics*
D005819:Genetic Markers