Ganglion cyst popped now swollen. Ganglions aren't cancerous. Most people with ganglions notice that the bumps appear suddenly. They are not cancer. Aug 11, 2025 · A ganglion is a fluid-filled lump which can occur near joints or tendons. Feb 4, 2025 · While the exact cause is unknown, ganglion cysts are believed to occur when a small tear forms in a joint capsule or tendon sheath, causing synovial fluid to extravasate (i. : ganglia) is a group of neuron cell bodies in the peripheral nervous system. They also can occur in ankles and feet. It is not a cancer. Repetitive movement may contribute to cyst enlargement and worsen symptoms. A ganglion (pl. gbk uzkecja loltrhv bvha rhvtyh irvo stzm dspdxt puys wlygesy