Popliteal Cyst
A popliteal cyst, also known as a Baker's cyst, manifests as a bulging sac of synovial fluid behind the knee.
Causes of a Popliteal Cyst
The cyst can form as a result of the following conditions:
- A tear in knee cartilage
- Knee arthritis
- Rheumatoid arthritis
- Other knee conditions
Symptoms of a Popliteal Cyst
This condition can cause a host of symptoms including:
- Joint stiffness
- Joint pain
- A feeling of tightness behind the knee
Diagnosis of a Popliteal Cyst
The diagnosis of a popliteal cyst usually requires a combination of the following tests:
- Physical examination
- Ultrasound
- MRI
Treatment of a Popliteal Cyst
When it comes to treatment, popliteal cysts usually resolve on their own. If the cyst is large and painful, the following treatments may be used:
- Draining the fluid from the cyst
- Cyst removal surgery
- Physical therapy
- Rest
- Medication
- Surgery to repair torn cartilage
Left untreated a popliteal cyst may sometimes rupture, a painful and serious health complication.