Image Quiz 1

 

A 25-year male football player presented with pain over the medial aspect of left knee joint. No obvious swelling was appreciated on clinical examination. There was a history of trauma 6 months back.

[polldaddy poll=6539782]

Answer: 

This young male football player presented with pain over the medial aspect of knee joint. He had a history of trauma 6 months back. However X rays done at that time were normal. The pain persisted and the patient was advised MRI to rule out the clinical suspicion of internal derangement of the joint.

MR imaging revealed a large unstable osteochondral fragment involving the medial femoral condyle with adjacent ossified loose bodies and subchondral cystic changes. Findings characteristic of unstable Osteochondritis dissecans.

Osteochondritis dissecans is a pathologic process affecting the articular cartilage and subchondral bone, primarily affecting males, 10 to 20 years of age. OD typically involves the lateral surface of medial femoral condyle. Trauma, ischemia, abnormal ossification, and genetic factors are suggested causes.

 

This Image Quiz has been contributed by:

Dr. Bhavin Jankharia, Consultant and Head of the Department ,  Jankharia Imaging, Mumbai (MBBS, DMRD, MD)
Areas of interest: Musculoskeletal  and Cardiothoracic Imaging

 Dr. Amit Kumar Janu ,Junior Consultant (Radiology), Jankharia Imaging, Mumbai (MBBS, DMRD, DNB)
Areas of interest: MSK and Neuro MR Imaging

Dr. Khushboo Pilania, Senior Registrar Radiology,  Jankharia Imaging, Mumbai (MBBS, MD)
Areas of interest: Neuro MRI