Abstract

The occurrence of an intra-articular ossicle is not rare in the knee but seldom have they achieved large size.

Case report We report a 14-year-old male who underwent a magnetization resonance imaging of the right knee joint having history of pain in the right knee for the past few months. There was no history of any trauma as such. On MR imaging we found a large intra articular ossicle in the knee joint in relation to the anterior cruciate ligament causing lifting of the ACL anterior-laterally. Intra-articular accessory ossicle of knee is a rare occurrence which can grow to size as seen in this case with significant mass effect and clinically mimic an ACL injur

Keywords: Intraarticular ossicle; Anterior cruciate ligament