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Chapter 18: Problem 20

Describe an alternative to performing surgery to determine whether a metastatic tumor is responding to a new drug.

Short Answer

Expert verified
An alternative to performing surgery to check the response of a metastatic tumor to a new drug could be a combination of medical imaging techniques (PET scan, CT scan, or MRI) to monitor changes in the tumor, and blood tests to measure the levels of specific tumor markers.

Step by step solution

01

Understand the concept of metastatic tumor

A metastatic tumor is a type of cancer that has spread from its original location to other parts of the body. It is more difficult to treat as compared to localized tumors. To check if a tumor is responding to a drug, one would typically measure changes in its size or appearance using medical imaging.
02

Understanding the role of new drugs

New drugs are constantly in development to improve the treatment of various types of cancer, including metastatic tumors. These drugs work in different ways, but their primary valid function is to slow down or halt the growth, spread, or proliferation of cancer cells.
03

Conceive a non-invasive method

An alternative way to assess the response of a metastatic tumor to a new drug could be through medical imaging techniques. Techniques like PET scan (Positron Emission Tomography), CT scan (Computed Tomography), or MRI (Magnetic Resonance Imaging) can be used. These techniques allow us to observe changes in the size, number or metabolic activity of tumors over time without surgery.
04

Incorporating Biomarkers

In addition to imaging, blood tests to measure levels of specific tumor markers - biological molecules produced by cancer or in response to cancer - could be helpful. Changes in these levels could indicate whether the drug is having its intended effect on the cancer.

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