Which term describes an increase in size of the kidneys?

The term "nephromegaly" specifically refers to the enlargement of the kidneys. It is derived from the root words "nephro," which relates to the kidneys, and "megaly," which denotes an increase in size. This condition can be indicative of various underlying health issues, such as kidney disease or other systemic conditions that affect the kidneys.

Other terms listed in the choices refer to different medical conditions that are not related to the kidneys. For instance, subcutaneous pertains to the layer of tissue beneath the skin, myocardial infarction refers to heart tissue damage due to a lack of blood supply (commonly known as a heart attack), and goiter refers to an enlargement of the thyroid gland. Each of these terms is associated with different physiological processes and does not convey information about the size or health of the kidneys, making nephromegaly the correct choice.