8 Products (View all) 1  Depend on unsurpassed quality and reliability with Original HP ink... 2  Depend on unsurpassed quality and reliability with Original HP ink.
Ganglion Cyst Quick Overview. A ganglion cyst is a tumor or swelling (benign, not cancerous) usually on top of a joint or the covering of a tendon (tissue that connects muscle to bone). It looks like a sac of liquid (cyst) located just under the skin. Inside the cyst is a thick, sticky, clear, colorless, jellylike material.
1 The size of a cyst can fluctuate, often getting larger when you use that joint for repetitive motions.  Pain. Ganglion cysts usually are painless. But if a cyst presses on a nerve â even if the cyst is too small to form a noticeable lump â it can cause pain, tingling, numbness or muscle weakness.