title: Ki-67 immunostaining and prognosis in laryngeal cancer.
abstract: The expression of the antigen defined by the Ki-67 antibody in paraffin sections from 154 biopsies of laryngeal squamous cell carcinomas was examined. There was a significant difference in Ki-67 expression between the control group and the patients with cancer (P < 0.001). There was no significant difference in the Ki-67 score between the patients with recurrence and the patients with a satisfactory outcome after treatment. There was no significant correlation between the Ki-67 score and the patient's age and sex, T and N stage and site of the tumour. The survival time of patients with a Ki-67 score > 30 was shorter than patients with a Ki-67 score < or = 30 but the difference did not reach statistical significance (P = 0.055). Multivariate analysis indicated that the only important prognostic factor was the existence of lymph node metastases. We could not confirm the value of Ki-67 as a prognostic factor in laryngeal cancer. Ki-67 score may assist in differentiating malignant from benign laryngeal epithelium.
authors.affiliation: Department and Clinic of Otolaryngology, Medical University of Wrocław, Poland.
authors.forename: T
authors.initials: T
authors.lastname: Krecicki
authors.forename: M
authors.initials: M
authors.lastname: Jeleń
authors.forename: M
authors.initials: M
authors.lastname: Zalesska-Krecicka
authors.forename: T
authors.initials: T
authors.lastname: Szkudlarek
mesh_terms: D000368:Aged; D000704:Analysis of Variance; D001706:Biopsy; D002294:Carcinoma, Squamous Cell / Q000175:diagnosis* / Q000276:immunology / Q000473:pathology; D005260:Female; D006801:Humans; D007124:Immunoenzyme Techniques; D019394:Ki-67 Antigen / Q000378:metabolism*; D007822:Laryngeal Neoplasms / Q000175:diagnosis* / Q000276:immunology / Q000473:pathology; D007830:Larynx / Q000276:immunology / Q000473:pathology; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D011379:Prognosis; D016016:Proportional Hazards Models; D013194:Staining and Labeling; D018709:Statistics, Nonparametric
chemical_list: D019394:Ki-67 Antigen