What is the surgical term for creating a new opening in an organ or structure?

The surgical term that refers to creating a new opening in an organ or structure is indeed represented by the suffix "-stomy." This term is derived from the Greek word "stoma," which means mouth or opening. When a "-stomy" procedure is performed, it often involves surgically creating an artificial opening for the purpose of allowing the passage of bodily fluids or substances, such as in the case of a colostomy, where an opening is made in the colon to divert waste.

The other choices represent different surgical procedures:

• The suffix "-tomy" means to cut into or incision, as in the term "laparotomy," which involves making an incision into the abdominal cavity.

• "-ectomy" indicates the surgical removal of a part of the body, for example, in "appendectomy," where the appendix is removed.

• The suffix "-rrhaphy" refers to surgical suturing, as in "herniorrhaphy," which is the repair of a hernia through suturing.

Thus, "-stomy" is uniquely identified with the process of creating a new opening, making it the correct choice in this context.