title: Rearrangements of chromosome arm 3q in poorly differentiated nasopharyngeal carcinoma.
abstract: Cell lines were established from fresh tumor biopsies from two Saudi patients with poorly differentiated nasopharyngeal carcinoma (NPC). Cytogenetic analysis on Giemsa-banded metaphase cells revealed complex, abnormal karyotypes in both patients with modal chromosome numbers of 77 and 52. A der(3)dup(3)(q25-q2?7) or t(3;?)(q27;?) was observed in both cell lines. The rearrangements involving chromosomes X, 1, 4, 6, 7, 8, 12, 13, 15, 17, and 22 in the first patient and 1, 6, and 22 in the second patient could represent clonal evolution.
authors.affiliation: Department of Biological and Medical Research, King Faisal Specialist Hospital, Riyadh, Saudi Arabia.
authors.forename: M
authors.initials: M
authors.lastname: Waghray
authors.forename: R S
authors.initials: RS
authors.lastname: Parhar
authors.forename: K
authors.initials: K
authors.lastname: Taibah
authors.forename: S
authors.initials: S
authors.lastname: al-Sedairy
mesh_terms: D000328:Adult; D002294:Carcinoma, Squamous Cell / Q000235:genetics* / Q000473:pathology; D002869:Chromosome Aberrations; D002893:Chromosomes, Human, Pair 3; D005260:Female; D006801:Humans; D007621:Karyotyping; D008875:Middle Aged; D009303:Nasopharyngeal Neoplasms / Q000235:genetics* / Q000473:pathology; D014407:Tumor Cells, Cultured