Bilateral Quadratus Femoris Oedema ? Muscle strain or tear

Hypothesis that this may be due to impingement between lesser trochanter and ischial tuberosity (see AJR letter)

Ischiofemoral Impingement Syndrome: An Entity With Hip Pain and Abnormalities of the Quadratus Femoris Muscle: AJR 2009; 193:186-190; http://www.ajronline.org/cgi/content/full/193/1/186

http://www.ajronline.org/cgi/content/full/190/6/W379

http://www.ajronline.org/cgi/content/full/190/6/W380

Vertical Tear MM

Micronodular Pattern in Myeloma Skull

Anterior Tibial Translation Sign in ACL Tear

Criteria:

Saggital MRI of lateral femoral condyle -

Draw vertical lines tangent to the posterior margins of the lateral femoral condyle and tibia -

7-mm or greater anterior translocation of the tibia relative to the femur.

Reference: June 2006 Radiology, 239, 914-915.

Double Delta Sign and Deep Lateral Sulcus Sign

Bucket Handle Tear Lateral Meniscus. Chronic ACL Tear