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 ...

Most cysts, tumors, and other lesions on the hand and wrist can be diagnosed in your office. A trio of experts provides step-by-step guidance. This is the first of a two-part series. Part 2 will ...

Medically reviewed by Lauren Schlanger, MD Key Takeaways A ganglion cyst is the most common cause of a lump on your hand or wrist and often feels round or oval. A carpal boss is a hard, bone-like lump ...

An oral mucous cyst, also called a mucocele, is a harmless swollen spot. It's a good idea to get it checked out, though, especially if it's bothersome. There are two types. Mucoceles show up on the ...

Swelling in a single finger usually results from an injury or minor infection. It may also be a sign of arthritis, gout, or a benign growth. Swelling in one finger is usually not a cause for concern.

Hand tumors or masses are common. The majority of hand tumors are benign, meaning they are not cancer. When malignant, or cancerous, most of these tumors are types of skin cancer. Cancers within ...