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Adenoid cystic carcinoma: DNA as a prognostic indicator
Authors:Gunnar Franz  n,Olav G. Klausen,Ronald T. Grenko,John Carstensen,Bo Nordenskj  ld
Affiliation:Gunnar Franzén,Olav G. Klausen,Ronald T. Grenko,John Carstensen,Bo Nordenskjöld
Abstract:
A retrospective study was performed on 20 patients with adenoid cystic carcinomas of major salivary glands to see if DNA. patterns correlated with their prognoses. Fourteen tumors were found to be DNA. diploid; 6 were DNA aneuploid. Histologically, all DNA-aneu-ploid tumors had solid components, compared with only 5 of the DNA-diploid tumors. All of the DNA-aneuploid tumors recurred, in contrast to only 2 of the DNA-diploid tumors; the difference was highly significant (P<0.001). All of the patients with no recurrences had DNA-diploid tumors. In our study, DNA measurements of adenoid cystic carcinomas gave statistically significant information about prognosis and correlated to histological grading. We propose that evaluation of DNA content may be performed before planning the treatment of adenoid cystic carcinomas.
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