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[Principles of the TNM system]
Schweizerische Monatsschrift Fur Zahnheilkunde = Revue Mensuelle Suisse D'Odonto-Stomatologie
|March 1, 1978
Summary
The TNM system describes cancer spread anatomically, using clinical and postsurgical classifications. A certainty factor (C-factor) enhances prognostic accuracy by detailing diagnostic methods used for TNM staging.
Area of Science:
- Oncology
- Medical Classification Systems
Context:
- The TNM (Tumor, Nodes, Metastasis) system is a standard for describing cancer anatomical spread.
- Accurate staging is crucial for treatment planning, prognosis, and outcome recording.
Purpose:
- To explain the principle of the TNM system for anatomical cancer staging.
- To differentiate between clinical and postsurgical TNM classifications.
- To introduce the C-factor for indicating diagnostic certainty in TNM staging.
Summary:
- The TNM system classifies anatomical cancer spread, with clinical classification preceding therapy and postsurgical classification used mainly for visceral tumors.
- Additional classifications like surgical-evaluative and autopsy are employed for specific disease stages.
- The C-factor is proposed to supplement the TNM formula, specifying the diagnostic methods used to determine each category, thereby enhancing prognostic precision.
Impact:
- Improved accuracy in cancer prognosis through precise tumor extension descriptions.
- Standardized reporting of diagnostic certainty in cancer staging.
- Foundation for interdisciplinary treatment planning and result recording in oncology.