• (ganglion cyst) A harmless sac of fluid on top of a joint or tendon, usually on the wrist or back of the hand.
  Harvard Dictionary of Health Terms
  Harvard Medical Publishing, 2011
• (ganglion cysts) Nodular tumor-like lesions or mucoid flesh, arising from tendon sheaths, LIGAMENTS, or JOINT CAPSULE, especially of the hands, wrists, or feet. They are not true cysts as they lack epithelial wall. They are distinguished from SYNOVIAL CYSTS by the lack of communication with a joint cavity or the SYNOVIAL MEMBRANE.
  NLM Medical Subject Headings
  U.S. National Library of Medicine, 2025
• Tumors of the hand are found to be benign 95% of the time when excluding a cutaneous malignancy. Representing about 60% of these benign tumors is the ganglion cyst.
  Medscape
  WebMD, 2025
• Ganglions are among the most common tumors of the hand and wrist. For the most part, they are asymptomatic masses that are primarily cosmetic rather than functional disturbances.
  Medscape
  WebMD, 2025
• Ganglion cysts are noncancerous lumps that most commonly develop along the tendons or joints of your wrists or hands. They also may occur in the ankles and feet. Ganglion cysts are typically round or oval and are filled with a jellylike fluid.
  Mayo Clinic
  Mayo Foundation for Medical Education and Research, 2025
• Ganglion cysts are smooth, soft, benign masses that are usually located on the wrist (dorsal or volar aspect) with one or more communicating stalks into the wrist joint or surrounding structures. They can be single or multiloculated and are filled with viscous, sticky, mucinous fluid.
  Epocrates
  Athenahealth, Inc., 2019
• Ganglion cyst, saclike structure containing thick gelatinous fluid that appears on the top or underside of the wrist or, less commonly, on the top of the foot. The cause is unknown, but trauma (wound or injury) to the tendon sheaths or the lining material of the joint may be implicated; it is most...
  Encyclopedia Britannica
  Encyclopedia Britannica, Inc., 2025