Prognostic relevance of the TNM classification 8th edition and new criteria of staging for retroperitoneal liposarcoma
For the first time a section appeared for staging of non-organ retroperitoneal tumors in the UICC TNM classification 8th edition. Aim.To assess the prognostic significance of the TNM classification eighth edition for the most common retroperitoneal tumors-liposarcoma. Materials and methods.The...
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| Autores principales: | , , , , |
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| Formato: | article |
| Lenguaje: | RU |
| Publicado: |
IP Habib O.N.
2020
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/439365f98fc246999c39720ad94e8a6b |
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| Sumario: | For the first time a section appeared for staging of non-organ retroperitoneal tumors in the UICC TNM classification 8th edition.
Aim.To assess the prognostic significance of the TNM classification eighth edition for the most common retroperitoneal tumors-liposarcoma.
Materials and methods.The distribution of patients by stages and survival in accordance with the TNM-8 classification were studied in192 patients with retroperitoneal non-organ liposarcoma (RLPS).
Results.In the TNM-8 classification, only the degree of malignancy of the tumor has a prognostic value, and the T-category does not reflect the actual size of the RLPS and is considered T4 in 93%, which leads to inadequate staging. During the 15-year period, there were no cases with stages II and IIIA, and the survival rate was estimated only in patients with stages I and IIIB. A TNM classification with new values of the T-category was proposed, which demonstrated a more adequate distribution of patients by stages and the reliability ofintergroup differences in the survival rate.
Conclusion.It is advisable to create a special TNM classification for RLPS, which makes up more than half of all retroperitoneal sarcomas. |
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