Ganglion Cysts

Ganglion cysts are noncancerous lumps that commonly develop along the tendons or joints of your wrists or hands. Less frequently, they can also appear on the ankles and feet. These typically round or oval cysts are filled with a jelly-like fluid. 

Ganglion cysts, distinguished by their common locations on the body, can vary in size. While most are painless, they can cause discomfort or pain if they press on a nearby nerve. The exact cause of ganglion cysts remains unknown, but they are thought to arise from a flaw in the joint capsule or tendon sheath that allows the joint tissue to bulge.

Several factors are thought to contribute to the development of ganglion cysts:

• Joint or Tendon Trauma
  Injuries to the joints or tendons can lead to cyst formation as part of the body’s response to trauma.
• Osteoarthritis
  People with wear-and-tear arthritis (osteoarthritis), particularly at the finger joints closest to the fingernails, are at higher risk of developing ganglion cysts.
• Joint Stress
  Continuous or excessive joint stress, often caused by certain occupations or hobbies that involve repetitive hand and wrist motions, can increase the risk of developing ganglion cysts.
• Mechanical Changes
  Repetitive movements or mechanical changes in the joint may predispose individuals to cyst development, likely due to alterations in the joint’s normal anatomy that allow for fluid accumulation.

Ganglion cysts present with various symptoms that largely depend on their size and location. The most common symptom is the appearance of a lump or swelling, which may:

• Appearance
  Manifest as a visible bump under the skin, often described as round or oval-shaped with a firm, rubbery texture.
• Size Fluctuations
  Vary in size, sometimes growing larger with repetitive joint use or diminishing size with rest.
• Location Specificity
  They commonly occur along the tendons or joints of the wrists, hands, ankles, and feet.
• Nerve Compression
  The cyst presses against a nerve, leading to pain, weakness, or numbness in the affected limb.
• Joint Movement Interference
  Its location interferes with joint movement, making it difficult to flex or extend the joint fully.

In instances where ganglion cysts cause persistent pain, limit joint movement, or recur after non-surgical treatments, surgical intervention may be considered. Surgical options include:

• Open Surgery (Excision)
  This traditional method involves making an incision over the cyst to remove it along with a portion of the joint capsule or tendon sheath. Open surgery allows for a thorough removal of the cyst, but it requires a longer recovery period and may leave a more significant scar.
• Arthroscopic Surgery
  Arthroscopic surgery may be an option for cysts located near joints. This less invasive procedure involves small incisions, the use of a camera, and specialised instruments to remove the cyst. Compared to open surgery, arthroscopic surgery typically offers a faster recovery time and less postoperative discomfort.