Pigmented villonodular synovitis of the knee: a case report

This case study is a report of a 21 year old female with one year history of non-traumatic left knee pain and swelling. Radiography and histology were in keeping with Pigmented Villonodular Synovitis (PVNS). This case highlights the clinical presentation of this rare disorder and emphasizes its consideration as a differential diagnosis in our set up when dealing with non-traumatic persistent knee pain and swelling. East African Orthopaedic Journal, Vol. 4: March 2010