Mucous cysts are pseudocysts (cystic structures lacking a true lining) that usually appear on the middle or index finger of the dominant hand; toe involvement is uncommon. Although most mucous cysts ...

Oral mucous cysts develop in the mouth. They appear near salivary gland openings, often on the lips or the floor of the mouth. A cyst on the floor of the mouth is known as a ranula. A cyst on the gums ...

A ganglion cyst is a fluid-filled noncancerous lump that usually develops in the wrist, hands, ankles, or feet. Some cysts do not need treatment, but others must be surgically removed. When a ganglion ...

Pancreatic lymphoepithelial cysts are rare, benign cysts that are typically lined by mature, keratinizing squamous epithelium with surrounding lymphoid tissue. These cysts tend to occur in middle- to ...

‌Lumps that appear on the wrist are usually noncancerous. Most often, they are ganglion cysts. These fluid-filled sacs are not a threat to health. Doctors can remove them if they become painful or ...