What technique combines chemotherapy and embolization to treat tumors?

• A. Transcatheter arterial chemoembolization
• B. Balloon angioplasty
• C. Stent placement
• D. Laser ablation

Answer: (A)

Transcatheter arterial chemoembolization (TACE) is a technique specifically designed to treat tumors, particularly those in the liver. This method combines two procedures: chemotherapy and embolization.

In TACE, chemotherapy drugs are delivered directly to the tumor through the blood vessels that supply it. This targeted approach maximizes the drug's impact on the tumor while minimizing systemic side effects. Following the delivery of the chemotherapy, embolization is performed. This involves blocking the blood vessels supplying the tumor, effectively cutting off its blood supply. The dual effect of the concentrated chemotherapy and the deprived blood supply can lead to enhanced tumor cell death and decreased tumor size.

In contrast, other techniques listed focus on different methods of treatment. Balloon angioplasty and stent placement are primarily used to open narrowed or blocked blood vessels, and laser ablation is a method used to destroy tissue using laser energy. These techniques do not involve the combination of chemotherapy and embolization, making TACE the correct response for this specific question regarding tumor treatment.