What is a ganglion cyst on the back side of the finger? A ganglion cyst on the back of the finger is a pocket of lubricating fluid from the underlying joint (figure). Another name for this is a mucous cyst. They are typically associated with underlying arthritis.1,2,3 Ganglion cysts may look unusual, but they are harmless. 1,2,3 Figure: a ganglion cyst. Signs and symptoms Ganglions can feel as hard as a bone. The underlying arthritis may cause pain, but the cysts do not. The cyst can be prominent. There may be a groove in the fingernail. If popped, the cyst may leak fluid. If it gets red, warm, and painful, it might be infected. This is uncommon. 1,2,3 Evaluation The diagnosis is usually clear on examination.3 Questions? × Help Heeft u hulp nodig bij het invullen van de keuzehulp? Of heeft u vragen over de keuzehulp? Bekijk hier het overzicht van veel gestelde vragen of neem contact op met het CZ Zorgteam: 013 594 9110. Notes × Notes Previous Next × Register U kunt de volgende keer inloggen op www.decisionaid.info/login with this digit code and the password that you created. PIN (Patient Identification Number) Password Re-enter password × Log-in PIN (Patient Identification Number) Password
