Which medical term indicates a connection between two internal organs?

The term that indicates a connection between two internal organs is indeed related to the concept of a fistula. A fistula is an abnormal passageway that forms between two organs or vessels that do not normally connect. This connection can occur due to various reasons, such as injury, surgery, or disease processes.

In a medical context, fistulas are significant because they can facilitate the flow of fluids between organs, but they can also lead to various complications, such as infections or changes in bodily function, depending on the organs involved. Understanding fistulas is crucial for healthcare professionals as they often require careful management and treatment.

The other terms mentioned relate to different medical concepts. A fissure refers to a split or crack in a surface, often seen in the skin or an organ, but does not signify a connection between organs. Edema describes the swelling caused by excess fluid trapped in the body's tissues and is unrelated to the structural connection between organs. Otomy refers to a surgical procedure, specifically the act of making an incision, and does not indicate a connection between organs either. Thus, fistula correctly defines the connection in question, while the other terms are distinctly different in meaning.