In medical terms, what does “resection” refer to?

In medical terminology, "resection" specifically refers to the surgical removal of tissue or an organ. This procedure is often performed to excise a tumor, remove diseased tissue, or eliminate an obstructive structure. The term encompasses a variety of surgical procedures that can range from the removal of a small portion of tissue to the excision of entire organs.

In contrast, the other options focus on different surgical actions: repair refers to fixing existing tissue without removing it, replacement involves substituting missing or damaged tissue typically with grafts or prosthetics, and reconstruction pertains to rebuilding or restoring the structure of tissue or organs. These distinctions are important in understanding the specific nature of surgical procedures and their objectives within medical practice.