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Four cases of solitary extramedullary plasmocytoma of the larynx (3 men, 1 women) treated with radiotherapy are presented. Laboratory and X-ray examinations showed no evidence of systemic plasmacytoma. One patient was treated with conventional X-ray therapy and 3 patients with telegammatherapy Co-60. All patients survived 10 years with no evidence of disease.

Eighty-five patients with stage II glottic laryngeal cancer were treated with radiotherapy in Center of Oncology in Kraków between 1973 and 1989. Fifty-five patients were irradiated with 60Co unit, 30 with mixed photon--electron beam. The 5-year survival rates without evidence of disease after the radiotherapy only were 65.9%, after the radiotherapy and surgery for recurrences--76.5%. The sex, age, local extension of primay tumour and vocal cord mobility were evaluated in a uni- and multivariate analysis of prognostic factors. For the end-point of 5-year survival without evidence of disease no statistically significant relationship was found between results and analysis variables, especially between survival and impaired cord mobility.

Six hundred and thirty patients with stage I and II glottic and supraglottic laryngeal cancer were treated with radiotherapy in Center of Oncology in Kraków between 1973 and 1989. The 5-year NED survival rates after the radiotherapy only were 79%, after the radiotherapy and surgery for reccurrences--87.1%. Gender is not a prognostic factor in early stage laryngeal cancer treated with radiotherapy.

Three hundred patients with early stage supraglottic cancer were treated with radiotherapy in Center of Oncology in Kraków between 1973 and 1989. The 5-year NED survival rates after the radiotherapy only were 82.9% in stage I, and 70%in stage II cancer, after the radiotherapy and surgery for recurrences--90% and 75% respectively. The stage and tumor site were an important prognostic factors in the treated group of patients.

Two-hundred and fifty patients presenting with a stage I-II cancer of the supraglottic larynx were definitively treated with irradiation. The 5-year disease-free survival rate is 76%. Multivariate analysis reveals that the only statistically significant prognostic parameters are clinical stage (I versus II), and tumour site (epilarynx versus supraglottis).

Two hundred and forty-five patients with stage I glottic laryngeal cancer were treated with radiotherapy in Center of Oncology in Kraków between 1973 and 1988. One hundred and fifty-five patients were irradiated with Co-60 unit, 90 patients with mixed photon-electron beam. The 5-year NED survival rates after the radiotherapy only were 85.3%, after the radiotherapy and surgery for recurrences--95.1%. The sex, age, local extension of primary tumor (T1a vs. T1b), location of the tumor on true vocal cord and involvement of anterior commissure were evaluated in a uni- and multivariate analysis of prognostic factors. For the end-point of 5-year NED survival no statistically significant relationship was found between results and analysis variables.