In which case Immunoguided surgery is done
**Core Concept**
Immunoguided surgery, also known as radioguided occult lesion localization (ROLL), is a technique that uses a radioactive tracer linked to a monoclonal antibody to detect and localize cancer cells in the body. This method relies on the binding of the antibody to specific tumor antigens, allowing for the identification of the tumor site during surgery.
**Why the Correct Answer is Right**
The correct answer involves the use of a radioactive tracer linked to a monoclonal antibody to detect cancer cells. This approach takes advantage of the specificity of monoclonal antibodies for tumor antigens, enabling the precise localization of the tumor site. The radioactive tracer emits a signal that can be detected by a gamma probe during surgery, guiding the surgeon to the tumor site.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect because it does not specify the use of a radioactive tracer or a monoclonal antibody, which are essential components of immunoguided surgery.
* **Option B:** This option is incorrect because it does not accurately describe the mechanism of immunoguided surgery, which involves the use of a radioactive tracer and a monoclonal antibody.
* **Option C:** This option is incorrect because it does not mention the use of immunoglobulins, which are not directly involved in immunoguided surgery.
* **Option D:** This option is incorrect because it does not accurately describe the application of immunoguided surgery, which is primarily used for detecting and localizing cancer cells.
**Clinical Pearl / High-Yield Fact**
Immunoguided surgery is particularly useful in cases where the tumor is small or has been occulted by surrounding tissue, allowing for more accurate tumor removal and improved patient outcomes.
**Correct Answer:** C.