Mass is a broad imaging term for a lump or abnormal growth seen in an organ or tissue.
Some masses cause no symptoms, while others may be linked to a visible lump, pain, pressure, bleeding, weight loss, or changes in how an organ works.
Imaging helps describe where the mass is, whether it looks cystic or solid, how large it is, and whether it affects nearby structures.
Imaging helps describe size, location, borders, and internal features, which guide whether follow-up or biopsy may be needed.
Some masses are benign, while others need more testing, specialist review, or treatment depending on their features.
This entry explains the word. If it appeared on your report, the next step is getting that report interpreted for your case.