Nodules, solid, raised lesions that extend deeper into the skin. These are larger cysts, lipomas, or certain types of skin ...

Note that, although measurements are given in some of the definitions, these are approximate and overlap may occur between "small" and "large" lesions. Blister. A compartmentalized fluid-filled ...

Ultrasound of the liver shows a fluid-filled mass with a peripheral thin rim of viable tumor (arrows). This lesion was a necrotic metastasis from colon cancer. The irregular inner wall (open arrow ...

Small, fluid-filled sacs, known as oral mucoceles, are common lesions that appear in the mouth and often disappear on their own. They are most frequently seen in individuals under 30. Given ...

An ovarian cyst is a sac or pouch filled with fluid or other tissue that forms on or inside a woman's ovary. Ovaries are the small reproductive glands located on each side of your uterus that make ...