Prognostic significance of nondiploid DNA determined by flow cytometry in sporadic and familial medullary thyroid carcinoma

Ian D Hay, J. J. Ryan, C. S. Grant, E. J. Bergstralh, J. A. Van Heerden, J. R. Goellner

Research output: Contribution to journalArticle

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Abstract

To clarify the role of DNA measurements in predicting outcome after surgical treatment of medullary thyroid carcinoma (MTC), we performed flow cytometric analysis in nuclear suspensions of 119 MTC tumors. Of the 119 patients, 63 (53%) patients had sporadic tumors and 56 (47%) patients had familial tumors; survivors were followed for a mean of 13 years. DNA content was normal in 92 (77%) patients and abnormal (nondiploid) in 27 (23%) patients. Ten-year cause-specific mortality rates were 12%, 42%, and 49% with diploid, tetraploid/polyploid, or aneuploid tumors (p = 0.0009) and were greater with nondiploid tumors both in the sporadic (p = 0.012) and multiple endocrine neoplasia (familial) cases (p = 0.114). None of 27 patients with TNM stage I disease died of MTC. In patients with TNM stages II, III, and IV disease, DNA nondiploid tumors were associated with increased deaths from MTC. In a Cox proportional hazards model involving all 119 patients and adjusted for disease stage and inheritance pattern, nondiploid DNA was independently associated with increased deaths from MTC (p = 0.008). In an identical Cox model restricted to the 92 DNA diploid tumors, an S-phase fraction of 15.0% or more remained a significant variable (p = 0.034) after adjustment for stage and inheritance pattern. We therefore conclude that DNA measurements do have a role to play in predicting outcome after surgical treatment of MTC.

Original languageEnglish (US)
Pages (from-to)972-980
Number of pages9
JournalSurgery
Volume108
Issue number6
StatePublished - 1990

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Flow Cytometry
DNA
Neoplasms
Inheritance Patterns
Diploidy
Proportional Hazards Models
Multiple Endocrine Neoplasia
Polyploidy
Tetraploidy
Familial medullary thyroid carcinoma
Aneuploidy
S Phase
Survivors
Medullary Thyroid cancer
Suspensions
Mortality
Therapeutics

ASJC Scopus subject areas

  • Surgery

Cite this

Hay, I. D., Ryan, J. J., Grant, C. S., Bergstralh, E. J., Van Heerden, J. A., & Goellner, J. R. (1990). Prognostic significance of nondiploid DNA determined by flow cytometry in sporadic and familial medullary thyroid carcinoma. Surgery, 108(6), 972-980.

Prognostic significance of nondiploid DNA determined by flow cytometry in sporadic and familial medullary thyroid carcinoma. / Hay, Ian D; Ryan, J. J.; Grant, C. S.; Bergstralh, E. J.; Van Heerden, J. A.; Goellner, J. R.

In: Surgery, Vol. 108, No. 6, 1990, p. 972-980.

Research output: Contribution to journalArticle

Hay, ID, Ryan, JJ, Grant, CS, Bergstralh, EJ, Van Heerden, JA & Goellner, JR 1990, 'Prognostic significance of nondiploid DNA determined by flow cytometry in sporadic and familial medullary thyroid carcinoma', Surgery, vol. 108, no. 6, pp. 972-980.
Hay, Ian D ; Ryan, J. J. ; Grant, C. S. ; Bergstralh, E. J. ; Van Heerden, J. A. ; Goellner, J. R. / Prognostic significance of nondiploid DNA determined by flow cytometry in sporadic and familial medullary thyroid carcinoma. In: Surgery. 1990 ; Vol. 108, No. 6. pp. 972-980.
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