Thyroid nodules are fluid-filled or solid lumps that form within the thyroid. A hypodense nodule is simply a less dense nodule.
Density is a measurement of mass per unit of volume, so a hypodense area has less mass for a given volume.
Typically this means it weighs less for a particular size. The implications of this depend on the particular tissue being asked about, and by what is causing the hypodensity.
Since hypo means "less, lower, too little, etc." (as opposed to hyper, meaning "too much", more", etc.) it means less dense, or lower denseness.
Bilateral adnexal hypodensities are shown as masses on the adnexal part of the uterus. These masses could be malignant or benign.
Kidney or urinary lowdensity head in this example a cyst
What does this mean in easy to understand terms
my ct scan says that i have several small focal hypodensities largest being 2cm this finding is non specific but these do not represent simple cysts. can anyone tell me what this means? This means that the scan picked up small areas of your liver that are different than the rest of the liver which puts up a "red flag" to the doctors. They know they are not simple cysts,therefore they must do further investigations to determine why these areas show up as denser than the surrounding tissue. Blood tests and possible biopsy (removing a small piece of the dense area) would be ordered. A liver biopsy is done outpatient and takes only a few minutes. Not to worry too much as fatty infiltration or hemangiomas can cause these findings, neither of which are unusual.Tissue in the liver that is less dense than the normal liver tissue, often fat.