title: [Difficulties in the diagnosis and treatment of the regional metastases of tongue cancer].
abstract: The results of treatment of 263 cases of squamous cell carcinoma of the tongue were studied. Regional metastases were detected in 52.4%. There was a correlation between tumor extension and incidence: T1--36, T2--42.1, T3--51.8 and T4--71.4%. The frequency of metastasis development depended on the site of primary tumor: mobile part of the tongue--47.5, posterior third--65.3 and root of the tongue--66.7% Dissemination was registered in 60% of recurrent tumors. Regional metastases proved to be of major importance in terms of survival. Five--year survival rate in patients with regional metastases was 15% and 65.8% in metastasis-free cases. The analysis of long-term results of treatment of patients suffering carcinoma of the mobile part of the tongue and with clinically intact lymph nodes showed the ineffectiveness of preventive treatment of zones of regional dissemination. Five-year survival rate in cases of preventive surgery on the neck was 39.1, in irradiated patients--40 and in the follow-up group--43.8%.
mesh_terms: D000230:Adenocarcinoma / Q000175:diagnosis* / Q000401:mortality / Q000628:therapy; D002294:Carcinoma, Squamous Cell / Q000175:diagnosis* / Q000401:mortality / Q000628:therapy; D003131:Combined Modality Therapy; D003951:Diagnostic Errors; D006801:Humans; D008207:Lymphatic Metastasis; D009333:Neck; D011300:Preoperative Care; D011879:Radiotherapy Dosage; D013997:Time Factors; D014062:Tongue Neoplasms / Q000175:diagnosis* / Q000401:mortality / Q000628:therapy
vernacular_title: Trudnosti v diagnostike i lechenii regionarnykh metastazov raka iazyka.