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Ganglion cyst
A ganglion cyst is a fluid-filled bump associated with a joint or tendon sheath. It most often occurs at the back of the wrist, followed by the front of the wrist.
The cause is unknown. The underlying mechanism is believed to involve an outpouching of the synovial membrane. Diagnosis is typically based on examination. The ability to shine light through the bump or any past decrease in size supports the diagnosis of the bump as a ganglion cyst. Ganglion cysts are usually obvious upon observation. Medical imaging may be considered on infrequent occasions to rule out another diagnosis.
Treatment is not necessary. Options for treatment include needle aspiration or surgery. About half the time, they resolve on their own. About three per 10,000 people develop a ganglion cyst of the wrist or hand a year.
The average size of these cysts is 2 centimetres (0.79 in), but excised cysts of more than 5 centimetres (2.0 in) have been reported. The size of the cyst may vary over time. Between 50 and 70% of all masses on the hand and wrist are ganglion cysts.
They commonly are found near the wrist joint, especially at the scapholunate area.
Common wrist ganglions include:
In a 2007 study of patients in Glasgow whose foot lumps were removed surgically, 39 of 101 cases were ganglion cysts. The study replicated earlier findings that no ganglion cysts were found on the sole or heel. The authors wrote, "Although lumps in these areas may be ganglia, the surgeon should probably consider other diagnoses in the first instance." The researchers noted a preponderance of occurrence among females (85%) and that 11 of the other cases had been misdiagnosed as ganglion cysts before surgery.
Ganglion cysts are not limited to the hands and feet. They may occur near the knee, mostly within and near the anterior cruciate ligament, but they may occur at the origins of the gastrocnemius tendon, and anteriorly on Hoffa's infrapatellar fat pad. Most patients with a ganglion cyst of the knee present with both pain and a restricted range of motion, but these findings are variable, and some patients may have neither.
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Ganglion cyst
A ganglion cyst is a fluid-filled bump associated with a joint or tendon sheath. It most often occurs at the back of the wrist, followed by the front of the wrist.
The cause is unknown. The underlying mechanism is believed to involve an outpouching of the synovial membrane. Diagnosis is typically based on examination. The ability to shine light through the bump or any past decrease in size supports the diagnosis of the bump as a ganglion cyst. Ganglion cysts are usually obvious upon observation. Medical imaging may be considered on infrequent occasions to rule out another diagnosis.
Treatment is not necessary. Options for treatment include needle aspiration or surgery. About half the time, they resolve on their own. About three per 10,000 people develop a ganglion cyst of the wrist or hand a year.
The average size of these cysts is 2 centimetres (0.79 in), but excised cysts of more than 5 centimetres (2.0 in) have been reported. The size of the cyst may vary over time. Between 50 and 70% of all masses on the hand and wrist are ganglion cysts.
They commonly are found near the wrist joint, especially at the scapholunate area.
Common wrist ganglions include:
In a 2007 study of patients in Glasgow whose foot lumps were removed surgically, 39 of 101 cases were ganglion cysts. The study replicated earlier findings that no ganglion cysts were found on the sole or heel. The authors wrote, "Although lumps in these areas may be ganglia, the surgeon should probably consider other diagnoses in the first instance." The researchers noted a preponderance of occurrence among females (85%) and that 11 of the other cases had been misdiagnosed as ganglion cysts before surgery.
Ganglion cysts are not limited to the hands and feet. They may occur near the knee, mostly within and near the anterior cruciate ligament, but they may occur at the origins of the gastrocnemius tendon, and anteriorly on Hoffa's infrapatellar fat pad. Most patients with a ganglion cyst of the knee present with both pain and a restricted range of motion, but these findings are variable, and some patients may have neither.