Ganglion Cyst in the Patellar Tendon: A Case Report

The ganglion cyst in the knee joint is relatively rare. Also ganglion cyst in the patellar tendon is extremely rare, we found one case report in Turkey and another one case in France, but we did not found in Korea. Most ganglion cysts in knee joint have been found incidentally by arthroscopy or MRI. We diagnosed the ganglion cyst within the patellar tendon incidentally after trauma by MRI, and treated by surgery. We report a case of the ganglion cyst within patellar tendon, improved remarkably in knee joint pain especially during extension after surgery.