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 ...

A cyst is a sac or cavity that may be filled with pus, semi-solid material, or air. It doesn’t usually cause pain until it gets large. An abscess is a painful, red infection that’s filled with pus. A ...