Cancer Staging
Staging is the standardized system for classifying the extent of cancer spread in the body, using stages I through IV. For pleural mesothelioma, the TNM staging system evaluates tumor size (T), lymph node involvement (N), and distant metastasis (M). Stage determines treatment eligibility, prognosis, and clinical trial options.
Mesothelioma staging ranges from Stage I (localized tumor confined to one side of the pleura) to Stage IV (distant metastasis present). Stages I and II are considered early-stage disease, where surgical options like EPP or pleurectomy/decortication may be curative. Stages III and IV are advanced, where treatment typically focuses on systemic therapies and symptom management.
Accurate staging requires comprehensive imaging (CT, PET/CT, MRI) and may include surgical exploration. The distinction between stages is critically important — it determines whether a patient is a surgical candidate, which chemotherapy or immunotherapy regimens are appropriate, and which clinical trials the patient may qualify for.
Only pleural mesothelioma has a formal TNM staging system. Peritoneal mesothelioma is typically staged using the Peritoneal Cancer Index (PCI), which measures tumor distribution across the abdominal cavity. Understanding your stage is a critical first step in treatment planning.
- Also known as
- TNM staging, Cancer stage
- Category
- Medical
- Related terms
- Metastasis, Prognosis, Pleural Mesothelioma, Biopsy, Clinical Trial
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