Case of the Month: September, 2010 Page 2

Answer

D. The salient abnormality is in the joint space.

Additional Imaging

Below are selected images from an MRI obtained for further evaluation, including a coronal STIR and multiple contiguous sagittal PD MR images.

What is the most likely diagnosis?

A.  ACL injury
B.  PCL injury
C.  Discoid lateral meniscus
D.  Osteochondritis dissecans