The process of preoperative marking can vary depending on the type and location of the cancer. Common techniques include:
Skin Marking: Using a sterile, permanent marker to draw lines or symbols on the skin overlying the tumor. Radiographic Marking: Utilizing imaging techniques such as mammography, ultrasound, or MRI to guide the placement of markers. Wire Localization: Inserting a thin wire into the tumor under imaging guidance, often used in breast cancer surgeries. Tattooing: Injecting small amounts of ink into the tissue around the tumor, commonly used in gastrointestinal cancers.
