title: DNA-flow cytometry of head and neck carcinoma: the importance of uniform tissue sampling and tumor sites.
abstract: Flow cytometric DNA ploidy measurements using deparaffinized tumor specimens were performed on 46 squamous cell carcinomas of the head and neck, including 22 carcinomas of the oropharynx, 18 carcinomas of the larynx and six carcinomas of the oral cavity. Aneuploidy was found in 14 of these tumors with carcinomas of the larynx and oral cavity showing almost equal percentages of DNA aneuploidy (10/18 and 3/6, respectively). In contrast, only 1 of the oropharyngeal carcinomas was aneuploid. Accurate microscopy-controlled sampling of tumor tissue from the histological tissue blocks was found to be mandatory in order to obtain reliable ploidy measurements.
authors.affiliation: Department of ENT/Head and Neck Surgery, The Netherlands Cancer Institute (Antoni van Leeuwenhoekhuis), Amsterdam.
authors.forename: H A
authors.initials: HA
authors.lastname: Westerbeek
authors.forename: W J
authors.initials: WJ
authors.lastname: Mooi
authors.forename: C
authors.initials: C
authors.lastname: Begg
authors.forename: M
authors.initials: M
authors.lastname: Dessing
authors.forename: A J
authors.initials: AJ
authors.lastname: Balm
mesh_terms: D002294:Carcinoma, Squamous Cell / Q000473:pathology*; D004273:DNA, Neoplasm / Q000032:analysis*; D005434:Flow Cytometry; D006258:Head and Neck Neoplasms / Q000473:pathology*; D006801:Humans; D008207:Lymphatic Metastasis; D011003:Ploidies; D011379:Prognosis; D013048:Specimen Handling
chemical_list: D004273:DNA, Neoplasm