Abstract
A variety of masses in the knee must be considered in a differential diagnosis when
swelling, pain, and a limitation of motion occur with no history of specific trauma.
These lesions are most commonly related to the synovial lining of the joint capsule
and the cruciate ligaments. The posterior compartment is an unusual location for solitary
lesions of the knee joint. There have been few cases of abscess presenting as an intra-articular
nodular mass. We report herein a case of a 15-year-old girl who had synovitis and
an abscess nodule of the posterior compartment behind the posterior cruciate ligament
in the knee joint. An arthroscopic synovectomy and mass excision along with antibiotic
administration was curative in our case.
Keywords
knee - posterior compartment - abscess