also termed a hive or urticarial lesion, a wheal varies in size and shape and is transient Vesicle: a small, circumscribed, raised, fluid-filled lesion <5 mm, containing serum, or blood ...

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 ...

Cold sores are a lesion that can appear on and around the ... There are two versions of HSV: Cold sores are tiny, recurring fluid-filled blisters. "Many people feel itching, burning or tingling ...

Ruptured ovarian cysts happen when these fluid-filled sacs in the ovaries break. The ovarian cyst wall opens up, which exposes the fluid in the cyst to your abdominal cavity. Physical activity or ...