The key difference between nodule and cyst is that the nodules contain solid materials while the cysts contain fluid. Skin lesions are a common manifestation of many benign and sinister pathological processes taking place inside the human body. Nodules and cysts are two such skin lesions that appear in different disease conditions. Although commonly arising on the skin, it is also possible for these lesions to occur within the internal organs of the body.
Thyroid nodules are solid or fluid-filled lumps that form within your thyroid, a small gland located at the base of your neck, just above your breastbone. The great majority of thyroid nodules aren't serious and don't cause symptoms. Thyroid cancer accounts for only a small percentage of thyroid nodules. You often won't know you have a thyroid nodule until your doctor discovers it during a routine medical exam. Some thyroid nodules, however, may become large enough to be visible or make it difficult to swallow or breathe. Most thyroid nodules don't cause signs or symptoms.
We respect your privacy. Breast cysts and benign breast abnormalities like fibroglandular tissue are very common in women who are still menstruating. In fact, it is not uncommon to have multiple cysts or areas of fibroglandular lumps. It appears from your question that you or your doctor may have felt some lumps in your breast , and then a breast sonogram was done to help determine whether these lumps were simple cysts or benign fibroglandular tissue.
A breast cyst is a fluid-filled sac within the breast. One breast can have one or more breast cysts. They are often described as round or oval lumps with distinct edges.