ASRT Student Exam Assessment Library (SEAL) Practice Exam

Question: 1 / 400

In the TNM staging system, what does Tx indicate?

The tumor is found

The tumor cannot be evaluated

In the TNM staging system, "Tx" denotes that the primary tumor cannot be evaluated. This designation is utilized when there is insufficient information to determine the presence or extent of the tumor. This could be due to various reasons such as a lack of imaging studies, incomplete surgical data, or if the tumor is not accessible for biopsy. The system relies on precise measurements of tumors to guide treatment decisions, so when a tumor is classified as "Tx," it indicates that healthcare providers cannot ascertain its status from the available clinical evidence.

Thus, "Tx" serves a critical role in the staging process, highlighting cases where further investigation may be needed rather than implications about tumor presence, localization, or metastasis, which are addressed through other specific designations within the TNM system.

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The tumor is localized

The tumor is metastatic

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