Which staging system is most commonly used for solid tumors?

The TNM system, which stands for Tumor, Node, Metastasis, is the most widely used staging system for solid tumors. This system categorizes cancer based on three key components: the size and extent of the primary tumor (T), the involvement of regional lymph nodes (N), and the presence of distant metastasis (M). By considering these three factors, the TNM system provides a comprehensive framework for assessing the severity and progression of cancer, which is crucial for determining the appropriate treatment plan and predicting patient outcomes.

The versatility of the TNM system allows it to be applied to a variety of solid tumors, including those of the breast, lung, colon, and prostate. The uniformity and clarity of the TNM classification enable healthcare providers to communicate effectively about a patient's cancer status, which is essential for research, treatment, and prognosis.

In contrast, the Braden Scale is used to assess the risk of pressure ulcers, the FIGO system is primarily focused on gynecological cancers, and the Gleason score is specifically utilized for grading prostate cancer based on histologic findings, making them less suitable as general staging systems for solid tumors.