Medline: 9473076

Laryngoscope 108(2): 243-249, 1998.

Prognostic factors in papillary and follicular thyroid carcinomas: p53 expression is a significant indicator of prognosis.

Godballe C, Asschenfeldt P, Jorgensen KE, et al.

Abstract:

To identify clinical and histologic prognostic factors and to investigate whether immunohistochemical detection of p53 expression might contain prognostic information, a retrospective study of patient and tumor characteristics was performed in 225 cases of papillary and follicular thyroid carcinomas. The analyses were based on cause-specific and crude survival. In univariate analysis, age at diagnosis, tumor size, presence of distant metastases, histology (papillary contra follicular type), extrathyroidal invasion, necrosis in primary tumor, and p53 expression were significant prognostic indicators. For 211 patients (96%) all information was available and Cox's proportional hazard model was applied. The authors found that age, distant metastases, necrosis in primary tumor, extrathyroidal invasion, and p53 expression were significant prognostic factors. Analyses of cause-specific and crude survival gave similar results. The authors conclude that age at diagnosis, presence of distant metastases, necrosis in primary tumor, and extrathyroidal invasion are important prognostic factors, and that immunohistochemical detection of p53 protein in the primary tumor is a significant and independent prognostic indicator, which might be of value in the treatment planning in patients with papillary or follicular thyroid carcinomas.


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