A lymph node is a small bean-shaped structure that is part of the body's immune system. Lymph nodes can be “swollen” (reactive) on imaging. Anything that causes inflammation can cause reactive lymph nodes. Most often this is from a transient viral infection; other less common causes include bacterial infection, malignancy, autoimmune disorders, as well as medications.
Vascular malformation is a general term to describe when blood vessels and/or lymph vessels have an abnormal appearance or connection because of developmental variation. This finding is located within your skin and is a rare but benign (non-cancerous) finding.
Subcutaneous (skin) nodules are abnormal growths of tissue in the deepest layer of the skin. They may be non-cancerous or malignant (cancerous).
A cyst is a sac-like pocket of membranous tissue that contains fluid, air, or other substances. Cysts can grow almost anywhere in the body or under the skin. There are many different types of cysts. Most cysts are benign (non-cancerous). Whether a cyst needs treatment depends on a number of factors, including the type of cyst, the location, if the cyst is causing pain or discomfort, and whether the cyst is infected.
Vascular malformation is a general term to describe when blood vessels and/or lymph vessels have an abnormal appearance or connection because of developmental variation - this is a rare but benign (non-cancerous) finding. One type of vascular malformation is an arteriovenous malformation (AVM), which is when the artery and vein are directly connected, instead of being connected by small capillaries.
Sebaceous cysts may be caused by blocked glands or swollen hair follicles in the skin.
