A lump on the finger knuckle joint can happen for many reasons, ranging from an inflammatory condition to an infection. In rare cases, a bump or lump on the finger knuckle joint can be due to a tumor.

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 ...

K.W. is an active 92-year-old, right-handed, Caucasian female with nodule and contracture formation of the right palmar fascia with extension to the metacarpophalangeal (MCP) and proximal ...

Severe pain from arthritis in your middle knuckle (PIP joint) may require replacement (arthroplasty). Silicone replacements are the most common. They tend to have the best results and typically last ...