What does mass mean when its shown up in a scan?

In the context of a medical scan, "mass" typically refers to an abnormal growth or accumulation of tissue that can be solid or filled with fluid. It may indicate various conditions, ranging from benign tumors or cysts to malignant tumors (cancer). The characteristics of the mass, such as size, shape, and location, are crucial for diagnosis and determining the appropriate treatment. Further evaluation, such as biopsy or additional imaging, may be necessary to understand its nature.