Knee popping and clicking in a pediatric athlete: meniscal injury or sports tumor?

Research output: Contribution to journalArticle


This case report presents a teenage patient who initially was thought to have a sports-related injury but ultimately was diagnosed with a primary soft tissue tumor. A previously healthy 16-year-old softball player presented with a history of left knee joint line pain, clicking, and swelling. The patient was presumed to have a lateral meniscus tear. However, magnetic resonance imaging demonstrated an intra-articular mass. Arthroscopy revealed a 2.5- × 1.5-cm firm pedicular mass in the lateral joint. Histological exam demonstrated localized pigmented villonodular synovitis. The patient healed uneventfully and returned to sporting activities. This report re-emphasizes the possibility that "sports tumors" can mimic symptoms of a meniscal tear in young athletes.

Original languageEnglish (US)
Pages (from-to)275-278
Number of pages4
JournalUnknown Journal
Issue number4
Publication statusPublished - Jan 1 2012


Cite this